Academic Radiology via MedWorm.com

Academic Radiology — Mon, 08 Mar 2010 15:54:37 +0100

(Source: Academic Radiology)

Emergency Ultrasound, Second Edition

Academic Radiology — Mon, 08 Mar 2010 15:54:36 +0100

Nothing induces palpitations, nausea, and lightheadedness quite like receiving your first ultrasound request as a radiology resident on the first night of call. Maybe, prior to this, you have done plenty of exams on your own with image quality equal or superior to the most experienced ultrasound techs in your department. Maybe your attending radiologists have already sung your praises for your outstanding knowledge of sonographic anatomy, physics, and artifacts. If this is the case, Emergency Ultrasound is not for you. However, if you need a basic guide for learning what you need to know to be helpful in the emergency department, this book is excellent. (Source: Academic Radiology)

Direct Diagnosis in Radiology: Head and Neck

Academic Radiology — Mon, 08 Mar 2010 15:54:35 +0100

This book is part of a series of small, portable, efficient review books in radiology. In this case, the subject matter is a subset of neuroradiology, head and neck imaging. There are some positives that I found in reviewing this book: it is indeed quite portable (it could easily be carried around in a large pocket or in a bag), well organized, to the point, and well illustrated (with quite legible pictures for a small softcover book), and it includes sections such as “What does the clinician want to know?” and “Tips and Pitfalls.” I was very interested in the potential for these latter two sections in particular but was not convinced that this potential was fully realized. Moreover, there were sections titled “Pathognomonic findings,” which I personally consider to be a misnom...

More Mammo Squabbles

Academic Radiology — Mon, 08 Mar 2010 15:54:35 +0100

For all of my years involved with radiology, I have been a strong supporter for mammography, both for clinical uses and for screening. In my assignments with the American College of Radiology (ACR), I helped encourage mammographic technique by publicizing its development and publicizing the value of periodic mammographic screening. I was not part of the science. Rather, I was part of the promotion which gained the support of the ACR, the Public Health Service, the trainers of radiologists and technologists, the manufacturers of x-ray film and equipment, other medical societies, and the science and medical writers who told the public about the value of early detection of breast cancer. (Source: Academic Radiology)

Performance of Dual-Energy CT with Tin Filter Technology for the Discrimination of Renal Cysts and Enhancing Masses

Academic Radiology — Mon, 08 Mar 2010 15:54:35 +0100

Conclusions: DECT using the tin filter results in an improved sensitivity and specificity for discriminating renal cysts from enhancing masses in a kidney phantom model and demonstrates higher dose efficiency as compared to former dual energy technology without tin filters. (Source: Academic Radiology)

Comparing Film and Digital Radiographs for Reliability of Pneumoconiosis Classifications: A Modeling Approach

Academic Radiology — Mon, 08 Mar 2010 15:54:35 +0100

Conclusion: Film-screen radiographs, hard copy digital images, and soft copy digital images yielded similar reliability measures. These findings provide further support to the recommendation that soft copy digital images can be used for the recognition and classification of dust-related parenchymal abnormalities using the ILO system. (Source: Academic Radiology)

Comparison of Standard-Dose and Reduced-Dose Expiratory MDCT Techniques for Assessment of Tracheomalacia in Children

Academic Radiology — Mon, 08 Mar 2010 15:54:34 +0100

Conclusion: The radiation dose of paired inspiratory-expiratory CT imaging can be reduced by 23% while maintaining similar diagnostic confidence for assessment of the tracheal lumen compared to a standard-dose technique in pediatric patients. Thus, a reduced-dose technique is recommended for evaluating TM in children. (Source: Academic Radiology)

Sensitivity of Quantitative Metrics Derived from DCE MRI and a Pharmacokinetic Model to Image Quality and Acquisition Parameters

Academic Radiology — Mon, 08 Mar 2010 15:54:34 +0100

Conclusions: Our synthesized DCE model represents perfectly reproduced data except for the presence of Gaussian-distributed random noise. Our analysis suggests minimum changes that may be considered potentially significant in longitudinal therapy assessment studies. Our data are complementary to experimental data from human subjects and phantoms, and provide guidance for the design of image acquisition strategies. (Source: Academic Radiology)

The Role of Parallel Diffusion-Weighted Imaging and Apparent Diffusion Coefficient (ADC) Map Values for Evaluating Breast Lesions: Preliminary Results

Academic Radiology — Mon, 08 Mar 2010 15:54:34 +0100

Conclusion: ASSET-DWI evaluation of breast tissue offers decreased distortion, susceptibility to artifacts, and acquisition time relative to other methods. The use of ASSET-DWI is feasible with b values ranging from 600 to 1000 s/mm2 and provides increased specificity compared to other techniques. Thus, the ADC value of a breast lesion can be used to further characterize malignant lesions from benign ones. (Source: Academic Radiology)

Dynamic Breast MRI in the Course of Neoadjuvant Chemotherapy: Standardized Evaluation of Tumor Size and Enhancement Parameters in Correlation to Different Histopathologic Characteristics

Academic Radiology — Mon, 08 Mar 2010 15:54:33 +0100

Conclusions: From routine MRI protocol and semiquantitative analysis of signal enhancement curves, information about size, and hemodynamic status of tumors under treatment may be extracted. Reduction in size and maximum enhancement were complementary parameters. In the course of therapy, size and enhancement may develop differently in clinically relevant histopathological subgroups. (Source: Academic Radiology)

Wireless Surveillance for Transjugular Intrahepatic Portosystemic Shunts (TIPS) A Feasibility Study

Academic Radiology — Mon, 08 Mar 2010 15:54:32 +0100

Conclusion: The use of wireless sensors may facilitate the surveillance of shunt function in patients with portal hypertension who have undergone placement of TIPS. (Source: Academic Radiology)

Gold Nanoparticle Contrast in a Phantom and Juvenile Swine: Models for Molecular Imaging of Human Organs using X-ray Computed Tomography

Academic Radiology — Mon, 08 Mar 2010 15:54:32 +0100

Conclusions: AuNP-based contrast agents may be useful in x-ray based CT. This study provides data for determining concentrations of AuNP in comparison to other contrast materials. (Source: Academic Radiology)

7.0 Tesla MRI: The “Field of Dreams”?

Academic Radiology — Mon, 08 Mar 2010 15:54:32 +0100

The tremendous scientific and clinical impact of magnetic resonance imaging (MRI) on medicine since its introduction in the early 1970s has been revolutionary. It is remarkable (in retrospect) that Lauterbur's historic concept—that nuclear magnetic resonance could be used to generate viable images by applying magnetic gradients to assign unique magnetic field strengths to each location (voxel) within an object that could in turn be used to localize each voxel to a unique point in space—was initially met by intense skepticism . In fact, Lauterbur was so dissuaded by the contemporary scientific consensus that MRI would never be clinically useful that he did not patent his invention . Particularly relevant to the issue of field strength, one prominent criticism was that the radiofrequency...

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Academic Radiology — Mon, 08 Mar 2010 15:54:32 +0100

(Source: Academic Radiology)

Diagnostic and Surgical Imaging Anatomy: Ultrasound

Academic Radiology — Mon, 08 Feb 2010 15:28:49 +0100

by A. T. Ahuja et al, as the title suggests, is the ultrasound component in the Amirsys collection of textbooks for viewing, understanding, and, in this case, performing anatomical imaging. As with the entire series, the Ultrasound installment continues the excellence in image quality with the expanse of images for which they are known. In addition to the outstanding pictorial drawings, another hallmark of the Amirsys collection, there are also appropriate planar selections from computed tomography or magnetic resonance images providing further correlation to the sonographic images. The authors also take into account the unique imaging prospective ultrasound allows as an operator dependent modality; therefore, each image contains an adjacent schematic display of the orientation and placem...

Brain Imaging

Academic Radiology — Mon, 08 Feb 2010 15:28:49 +0100

is an installment of the Dx-Direct: Direct Diagnosis in Radiology series published by Thieme. This book limits its scope to imaging of the brain. Spine and head/neck imaging are covered in other texts, along with the other major radiologic subspecialties. (Source: Academic Radiology)

Flexner Report on Medical Education

Academic Radiology — Mon, 08 Feb 2010 15:28:49 +0100

A century ago this year, a Kentucky high school teacher wrote a report that had a dynamic effect on the shape and quality of American medical schools. His name was Abraham Flexner. By the time he undertook a study of medical schools in the United States and Canada, he had given up teaching and was a research associate at the Carnegie Foundation for the Advancement of Teaching. His brother, Simon Flexner, was the scientific director of the Rockefeller Institute, a philanthropic structure funded by the oil tycoon John D. Rockefeller. (Source: Academic Radiology)

Rich Corporate Types

Academic Radiology — Mon, 08 Feb 2010 15:28:49 +0100

For several decades, my mailbox has been cluttered each year with annual reports and proxy statements from companies in which I own shares. The annual report, with its glowing color photos, tells me just how wonderful the company did in the past year. The introductory essay from the chief executive relates how wonderful things will be next year. But the financial summary may be contradictory to management's self-praise. More of that may be confirmed if I wade deeply into the fine print in the back part of the report. The other part of the package, which many of us share, is a folder and statement soliciting proxy votes for positions taken by the corporate board. Any resemblance between the board's action and the optimistic annual report may be hard to find. (Source: Academic Radiology)

Drs Hoffman and Barr Replies:

Academic Radiology — Mon, 08 Feb 2010 15:28:47 +0100

We would like to thank Drs. Hochhegger, Irion and Marchiori for their kind comments and their thoughtful questions. The issue regarding appropriate density-mask thresholds for the characterization of emphysema via quantitative computed tomography (CT)-based assessment of the lung is an important one. Quantitative CT has been used with increasing frequency to assess presence, extent, and location of emphysema-like lung for the purposes of pharmaceutical efficacy testing, safety testing, population selection for device placement, and for the identification of homogeneous subphenotypes within the chronic obstructive pulmonary disease (COPD) population to better target new therapeutic development efforts. Although quantitative CT has contributed greatly to these efforts, the measures are, in ...

Thresholds to Lung Density Measures

Academic Radiology — Mon, 08 Feb 2010 15:28:47 +0100

This article highlights an important topic for emphysema measurement. However, in their paper, the authors state, “Based on pathology comparisons…and literature-based consensus…−910 HU [Hounsfield units] was specified a priori as the threshold for primary analyses.” A threshold of −910 HU was established by Müller et al , who used one single-slice computed tomographic scan with a slice thickness of 10 mm and intravenous contrast. Slice thickness and the use of intravenous contrast influence lung density and the measurement of emphysema . Recently, Madani et al reported a study using multidetector computed tomography without iodinated contrast. The strongest correlation of multidetector computed tomography with macroscopy was observed at a threshold of −970 HU (r = 0.543, P <...

Comparison of Conventional Abdominal CT with MR-Enterography in Patients with Active Crohn's Disease and Acute Abdominal Pain

Academic Radiology — Mon, 08 Feb 2010 15:28:45 +0100

Conclusions: In patients with known advanced CD with acute abdominal pain conventional abdominal MD-CT, which is frequently performed as an emergency imaging procedure, is sufficient for bowel wall assessment. Based on our data, additional dedicated small bowel imaging such as MRE seems not to be necessary. (Source: Academic Radiology)

Computer-Aided Diagnosis of Lung Nodules on CT Scans: ROC Study of Its Effect on Radiologists' Performance

Academic Radiology — Mon, 08 Feb 2010 15:28:44 +0100

Conclusion: CAD has the potential to increase radiologists' accuracy in assessing the likelihood of malignancy of lung nodules on CT imaging. (Source: Academic Radiology)

Volumetric Analysis of Pulmonary CTA for the Assessment of Right Ventricular Dysfunction in Patients with Acute Pulmonary Embolism

Academic Radiology — Mon, 08 Feb 2010 15:28:44 +0100

Conclusion: Ventricle volumetry of non–ECG-gated CTA allows the assessment of right ventricular dysfunction in patients with acute PE. Compared to unidimensional measurements, a volumetric analysis seems to be slightly superior to identify high-risk patients with adverse clinical outcome. However, the method is more time consuming and requires dedicated software tools compared to unidimensional parameters, which is disadvantageous in an emergency setting. (Source: Academic Radiology)

MRI-coupled Fluorescence Tomography Quantifies EGFR Activity in Brain Tumors

Academic Radiology — Mon, 08 Feb 2010 15:28:42 +0100

Conclusions: This preclinical study suggests that MRI-FMT with fluorescent EGF provides excellent discrimination between tumors based on EGFR status. Reliable quantification of receptor status using minimally invasive techniques would be an important innovation for investigating new and existing cancer treatments that target these cellular mechanisms in research animals, and may be applied to identify receptor amplification in human brain cancer patients. This study represents the first systematic multianimal validation of receptor-specific imaging using MRI-guided fluorescence tomography. (Source: Academic Radiology)

Magnetic Fields and the Brain at High Field Strengths: What Do We Know?

Academic Radiology — Mon, 08 Feb 2010 15:28:42 +0100

The magnetic resonance imaging (MRI) physician's mantra has long been that MRI is without “side effects” and in particular without the terrible side scourge of computed tomographic scanning: radiation. The lack of ionizing radiation with MRI is usually compelling compared to the known deoxyribonucleic acid damage that occurs following high doses of x-ray irradiation. New magnetic resonance scanners routinely operate at 3 T, and much more powerful scanners could potentially be approved by the US Food and Drug Administration, up to 8 T . Human MRI scanners operating up to 12 T have been manufactured, yet the impact of these powerful magnetic fields on the human body remains relatively unknown. (Source: Academic Radiology)

Lung Function Measurement of Single Lungs by Lung Area Segmentation on 2D Dynamic MRI

Academic Radiology — Mon, 08 Feb 2010 00:00:00 +0100

Conclusions: Measurement of lung area on 2D-MRI allows for functional measurement of single lungs with good agreement to spirometry. Postprocessing is fast enough for application in a clinical context and possibly provides increased sensitivity for lung functional measurement of inhomogeneously distributed lung disease. (Source: Academic Radiology)

The Use of a Simulation Center to Improve Resident Proficiency in Performing Ultrasound-Guided Procedures

Academic Radiology — Mon, 25 Jan 2010 00:00:00 +0100

Conclusions: The use of controlled simulation based training can be an invaluable tool to improve the knowledge level, dexterity, and confidence of residents performing ultrasound-guided procedures. Additionally, a simulation model allows standardization of education. (Source: Academic Radiology)

Comparison between Population Average and Experimentally Measured Arterial Input Function in Predicting Biopsy Results in Prostate Cancer

Academic Radiology — Thu, 14 Jan 2010 00:00:00 +0100

Conclusions: These results suggest that, when DCE MRI data are acquired with limited temporal resolution, experimentally measured individual AIF is not significantly better than population average AIF in predicting the biopsy results in prostate cancer. (Source: Academic Radiology)

Collapsibility of Lung Volume by Paired Inspiratory and Expiratory CT Scans: Correlations with Lung Function and Mean Lung Density

Academic Radiology — Mon, 11 Jan 2010 00:00:00 +0100

Rationale and Objectives: To evaluate the relationship between measurements of lung volume (LV) on inspiratory/expiratory computed tomography (CT) scans, pulmonary function tests (PFT), and CT measurements of emphysema in individuals with chronic obstructive pulmonary disease.Materials and Methods: Forty-six smokers (20 females and 26 males; age range 46–81 years), enrolled in the Lung Tissue Research Consortium, underwent PFT and chest CT at full inspiration and expiration. Inspiratory and expiratory LV values were automatically measured by open-source software, and the expiratory/inspiratory (E/I) ratio of LV was calculated. Mean lung density (MLD) and low attenuation area percent ( (Source: Academic Radiology)

Computer-Assisted Quantitative Evaluation of Therapeutic Responses for Lymphoma Using Serial PET/CT Imaging

Academic Radiology — Mon, 11 Jan 2010 00:00:00 +0100

Conclusions: These data support a role for LINA in facilitating quantitative analysis of serial PET/CT images to efficiently assess cancer treatment responses in a comprehensive and intuitive software platform. (Source: Academic Radiology)

Complication Rates and Outcomes of 536 Implanted Subcutaneous Chest Ports: Do Rates Differ Based on the Primary Operator's Level of Training?

Academic Radiology — Mon, 11 Jan 2010 00:00:00 +0100

Conclusions: Our results confirm that well-trained physician extenders and trainees can safely perform chest port placement and that these providers, under appropriate supervision, can help provide improved access to chest port placement for patients and referring clinicians. (Source: Academic Radiology)

Whole Brain Perfused Blood Volume CT: Visualization of Infarcted Tissue Compared to Quantitative Perfusion CT

Academic Radiology — Mon, 11 Jan 2010 00:00:00 +0100

This study determines the value of whole brain color-coded three-dimensional perfused blood volume (PBV) computed tomography (CT) for the visualization of the infarcted tissue in acute stroke patients.Materials and Methods: Nonenhanced CT (NECT), perfusion CT (PCT), and CT angiography (CTA) in 48 patients with acute ischemic stroke were performed. Whole brain PBV was calculated from NECT and CTA data sets using commercial software. PBV slices in identical orientation to the PCT slices were reconstructed and the area of visual perfusion abnormality on PBV maps was measured. The infarct core in the corresponding PCT slices (CBV (Source: Academic Radiology)

Glioma Recurrence Versus Radiation Necrosis? A Pilot Comparison of Arterial Spin-Labeled, Dynamic Susceptibility Contrast Enhanced MRI, and FDG-PET Imaging

Academic Radiology — Mon, 11 Jan 2010 00:00:00 +0100

Conclusions: Compared with DSCE-CBV imaging, ASL imaging may more accurately distinguish predominant recurrent high-grade glioma from radiation necrosis, especially in regions with mixed radiation necrosis, for which DSCE-CBV imaging may underestimate true blood volume because of leakage artifacts. (Source: Academic Radiology)

Musculoskeletal Imaging: Case Review Series

Academic Radiology — Wed, 06 Jan 2010 15:11:43 +0100

This is a case-based textbook of musculoskeletal imaging. The intended audience includes anyone interested in learning about musculoskeletal imaging, but it is written primarily for residency level training. The author, Dr. Joseph S. Yu, is the section chief of musculoskeletal radiologist at The Ohio State University. (Source: Academic Radiology)

Arthritis In Color: Advanced Imaging Of Arthritis

Academic Radiology — Wed, 06 Jan 2010 15:11:43 +0100

Arthritis in Color is an in-depth book detailing the most recent advances in arthritis imaging. Each author is a musculoskeletal subspecialist with a research interest in arthritis imaging. Collaboration with six other contributors, each of whom has a particular research interest in arthritis imaging, provides the reader with a unique level of expert authorship. (Source: Academic Radiology)

Happy Anniversary, ABR

Academic Radiology — Wed, 06 Jan 2010 15:11:43 +0100

Early in October, the American Board of Radiology (ABR) celebrated its 75th anniversary. I wrote a history of the board and had the privilege of participating in the celebration. The specialty and its board have come a long way together in three quarters of a century. And in the next couple of decades, the advances may be more like a quantum jump than plodding progress. (Source: Academic Radiology)

Mammography Saves Lives

Academic Radiology — Wed, 06 Jan 2010 15:11:43 +0100

In the 50 years since mammography became a vigorous part of diagnostic radiology, it has contributed to the early detection of breast cancer; it has shown surgeons where to find and remove lesions without the need for radical mastectomy; it has helped increase the survival rate of breast cancer patients; and it has become a generally acceptable screening procedure for asymptomatic women. (Source: Academic Radiology)

The Ductal Carcinoma In Situ (DCIS) Dilemma

Academic Radiology — Wed, 06 Jan 2010 15:11:38 +0100

Detecting, classifying (grading), treating, and managing ductal carcinoma in situ (DCIS), and other high-risk abnormalities (eg, atypical ductal hyperplasia [ADH]), of the breast remains an ever-evolving, complicated, extremely expensive, and controversial area of interest. (Source: Academic Radiology)

T2-weighted MRI of the Upper Abdomen: Comparison of Four Fat-Suppressed T2-weighted Sequences Including PROPELLER (BLADE) Technique

Academic Radiology — Thu, 31 Dec 2009 00:00:00 +0100

Conclusion: The T2-weighted free-breathing navigator-triggered TSE sequence with the BLADE technique is a promising approach for reducing motion artifacts and improving image quality in upper abdominal MRI scans. (Source: Academic Radiology)

Preoperative and Intraoperative Sonographic Visibility of Collagen-Based Breast Biopsy Marker Clips

Academic Radiology — Thu, 31 Dec 2009 00:00:00 +0100

Conclusion: The sonographic visibility of collagen-based marker clips is variable and likely decreases over time but may be adequate to guide intraoperative surgical excision in many cases. (Source: Academic Radiology)

Diagnostic Performance of a Prototype Dual-Energy Chest Imaging System: ROC Analysis

Academic Radiology — Thu, 31 Dec 2009 00:00:00 +0100

Rationale and Objectives: To assess the performance of an experimental prototype dual-energy (DE) chest imaging system in comparison to digital radiography (DR) in detection and characterization of lung lesions using receiver-operating characteristic (ROC) tests.Materials and Methods: A cohort of 129 patients (80 M, 49 F; mean age, 64.8 years) was drawn from a trial of patients referred for percutaneous biopsy of a lung lesion. DR and DE images were acquired of each patient (posteroanterior view) before biopsy using a prototype system developed in our laboratory. The system incorporated a flat-panel detector and previously reported imaging techniques optimized such that the total dose for the DE image was equivalent to that of a DR acquisition. Each DE image was decomposed to three compone...

Time to Diagnosis and Performance Levels during Repeat Interpretations of Digital Breast Tomosynthesis: Preliminary Observations

Academic Radiology — Mon, 28 Dec 2009 00:00:00 +0100

Conclusion: DBT-based breast imaging may ultimately result in a substantial increase in performance; however, without efficiency improvements DBT may take longer to interpret. Addition of “false-positive recalls” was most strongly associated with increase in interpretation time while elimination of “false-positive recalls” did not require longer interpretation time. (Source: Academic Radiology)

Effect of Breast Compression on Lesion Characteristic Visibility with Diffraction-Enhanced Imaging

Academic Radiology — Mon, 28 Dec 2009 00:00:00 +0100

Conclusions: Reducing the need for breast compression might increase patient comfort during mammography. Our results suggest that DEI may allow a reduction in compression without substantially compromising clinical image quality. (Source: Academic Radiology)

Short Term Effects of Magnetic Resonance Imaging on Excitability of the Motor Cortex at 1.5T and 7T

Academic Radiology — Mon, 28 Dec 2009 00:00:00 +0100

Conclusion: MRI examinations lead to a transient and highly significant alteration in cortical excitability. This effect does not seem to depend on the strength of the static magnetic field. (Source: Academic Radiology)

Imaging of Patients with Hippocampal Sclerosis at 7 Tesla: Initial Results

Academic Radiology — Thu, 17 Dec 2009 00:00:00 +0100

Conclusions: High-resolution imaging at 7 Tesla is promising in presurgical epilepsy imaging. “New” contrasts may further improve detection of even very small intrahippocampal structural changes. Therefore, further investigations will be necessary to demonstrate the potential benefit for presurgical selection of patients with various lesion patterns in mesial temporal epilepsies resulting from a unilateral HS. (Source: Academic Radiology)

Morphological Analysis of Pancreatic Cystic Masses

Academic Radiology — Mon, 14 Dec 2009 00:00:00 +0100

Conclusions: The results suggest that pancreatic cystic masses are not spherical. Therefore, a cyst's single largest transaxial dimension is not an accurate surrogate of its actual volume. (Source: Academic Radiology)

Dissemination of Radiological Information using Enhanced Podcasts

Academic Radiology — Fri, 11 Dec 2009 00:00:00 +0100

Conclusion: The use of still images rather than video clips equates to a much smaller file size for an enhanced podcast compared to a vodcast, allowing quicker upload and download times. (Source: Academic Radiology)

Diffusion Weighted MR Imaging of the Breast

Academic Radiology — Fri, 11 Dec 2009 00:00:00 +0100

The aim of this work is to review the techniques and clinical applications of diffusion-weighted magnetic resonance (MR) imaging of the breast. Diffusion-weighted MR imaging plays a role in the differentiation breast cancer from benign lesions, the characterization of malignancy, and the detection of tumor extension. The apparent diffusion coefficient of breast cancer is correlated with tumor cellularity and some prognostic factors of breast cancer. It can be used for the differentiation of recurrent tumors from posttreatment changes and monitoring of patients after chemotherapy. Diffusion-weighted MR imaging is used for the characterization of breast mass, diagnosis, and the grading and staging of breast cancer, as well as prediction of the responses of patients with breast cancer to chem...

Correlation of CSF Proinflammatory Cytokines with MRI in Tuberculous Meningitis

Academic Radiology — Fri, 11 Dec 2009 00:00:00 +0100

Conclusions: Results of this study suggest that the DTI-derived anisotropy have the potential to delineate meningeal inflammation and it may be used in assessment of therapeutic response in TBM patients as an additional method to conventional imaging. (Source: Academic Radiology)

Reproducibility of Lung and Lobar Volume Measurements Using Computed Tomography

Academic Radiology — Thu, 10 Dec 2009 00:00:00 +0100

Conclusion: CT lung and lobar volume measurements could be captured in a multicenter trial setting with high reproducibility and were highly correlated with those obtained on PFT. CT imaging showed significantly better reproducibility than PFT between interval lung volume measurements, offering the potential for designing emphysema treatment trials involving fewer subjects. (Source: Academic Radiology)

Musculoskeletal Imaging: Direct Diagnosis in Radiology

Academic Radiology — Wed, 09 Dec 2009 15:09:31 +0100

This is 1 of a 12-book series published by Thieme (series title Direct Diagnosis in Radiology). Each book covers 1 of the 12 main subspecialties in radiology. The aim is to produce a well-organized reference text for the most commonly encountered pathology in daily practice. The book is half the size of a standard textbook, likely reflecting its perceived use as a quick reference source. (Source: Academic Radiology)

Specialty Imaging: HRCT of the Lung: Anatomic Basis, Imaging Features, Differential Diagnosis

Academic Radiology — Wed, 09 Dec 2009 15:09:31 +0100

This first-edition, comprehensive text of high-resolution computed tomography (HRCT) imaging of the lung is a fabulous reference source for anyone involved in reading cardiothoracic CTs. It is a useful resource for learning HRCT imaging features, generating a differential diagnosis, and referencing a particular entity. The book is the collaborative effort between Dr. Gurney, four additional thoracic radiologists, and Amirsys, a leading provider of imaging informatics and diagnostic reference support for pathology and radiology. In fact, this text is presented in a style similar to STAT dx, another Amirsys creation and a friend to many a resident on call. The result is a comprehensive, well-organized reference text for the interpretation of HRCT. (Source: Academic Radiology)

The Electronic Era

Academic Radiology — Wed, 09 Dec 2009 15:09:31 +0100

On several occasions in this column, I have bemoaned the advent of the electronic publication of journals and other publications in the field of medicine, in which I know something about publications, and doubtless in other fields. Shaking my thinning gray locks and shrugging my creaky shoulders, I have deplored the reality of growing sections of publications that are referenced to Web sites and not available in the pages I hold in my hand. (Source: Academic Radiology)

Hitchhiking

Academic Radiology — Wed, 09 Dec 2009 15:09:31 +0100

In my dotage, I have developed a timidity about going places and getting back. If it is something like a football game or a concert, and I am driving, I fret about parking. If I go by taxi or bus, I worry about how to get a ride back to where I started. A few times, I have joined someone who chartered a limousine. But that goes against my Scottish nature, and I am not likely to do it. (Source: Academic Radiology)

Goals and Objectives for an Integrated, Graduated Curriculum in Abdominal Radiology

Academic Radiology — Wed, 09 Dec 2009 15:09:30 +0100

The Residency Review Committee of the American Council of Graduate Medical Education has designated abdominal radiology as one of the subspecialty areas required for radiology residency training. Because it spans both gastrointestinal and genitourinary organ systems and multiple modalities, a graduated, integrated abdominal radiology curriculum, which is based on the General Competencies, was developed. (Source: Academic Radiology)

Volumetric CT in Lung Cancer: An Example for the Qualification of Imaging as a Biomarker

Academic Radiology — Wed, 09 Dec 2009 15:09:30 +0100

Conclusion: This report addresses a procedural template for the qualification of quantitative imaging biomarkers. This mechanism is cost-effective for stakeholders while simultaneously advancing the public health by promoting the use of measures that prove effective. (Source: Academic Radiology)

The Use of Volumetric CT as an Imaging Biomarker in Lung Cancer

Academic Radiology — Wed, 09 Dec 2009 15:09:30 +0100

Conclusion: The Quantitative Imaging Biomarkers Alliance is investigating volumetric computed tomographic acquisition and analytic methods to increase the analytic power per subject enrolled in clinical trials to reduce the number of total subjects needed or shorten the length of time an individual needs to be followed to reliably establish drug response. (Source: Academic Radiology)

EGFR Targeted Fluorescence Imaging in Gliomas

Academic Radiology — Wed, 09 Dec 2009 15:09:28 +0100

Glioblastomas are among the most common malignancies of the brain, with a median survival time of (Source: Academic Radiology)

Evaluation of US Training for the Past 6 Years at ECUREI, the World Federation for Ultrasound in Medicine and Biology (WFUMB) Centre of Excellence, Kampala, Uganda