Accuracy of chemical shift MR imaging in diagnosing indeterminate bone marrow lesions in the pelvis: review of a single institution's experience.

Objective: To re-assess the accuracy of chemical shift imaging in diagnosing indeterminate bone marrow lesions as benign or malignant.

Materials And Methods: We retrospectively reviewed our experience with MR imaging of the pelvis to assess the accuracy of chemical shift imaging in distinguishing benign from malignant bone lesions. Two musculoskeletal radiologists retrospectively reviewed all osseous lesions biopsied since 2006, when chemical shift imaging was added to our routine pelvic imaging protocol.

The importance of sagittal 2D reconstruction in pelvic and sacral trauma: avoiding oversight of U-shaped fractures of the sacrum.

Objective: The U-shaped sacral fracture can be overlooked without appropriate imaging. Radiographic and CT imaging of seven patients with U-shaped sacral fractures was reviewed.

Conclusion: Although it is difficult to discern on anteroposterior radiographs and axial or coronal CT, the fracture is easily identifiable on CT images in the sagittal plane.

Diagnosis of proximal femoral insufficiency fractures in patients receiving bisphosphonate therapy.

Objective: The purpose of this article is to describe the imaging features of proximal femoral insufficiency fractures in patients on long-term bisphosphonate therapy.

Conclusion: The imaging findings of bisphosphonate-related femoral insufficiency fractures, which include a typical proximal diaphyseal location and transverse liner radiolucency through localized thickening of the lateral cortex, allow a specific diagnosis.

Nephrogenic systemic fibrosis in liver disease: a systematic review.

Nephrogenic systemic fibrosis (NSF) may develop in patients with liver disease, a fact highlighted by Food and Drug Administration (FDA) announcements cautioning against the use of gadolinium-based contrast agents (GBCAs) in select liver disease patients. The purpose of this systematic literature review is to characterize the risk of NSF in patients with liver disease. All published articles on NSF from September 2000 through August 2008, were identified via PubMed searches and examination of articles' reference lists.

Effect of shot number on the calculated apparent diffusion coefficient in phantoms and in human liver in diffusion-weighted echo-planar imaging.

Purpose: To show the signal intensity varies with shot number in diffusion-weighted (DW) echo-planar imaging (EPI) and affects apparent diffusion coefficient (ADC) calculation.

Materials And Methods: This prospective study was performed on 35 adult patients and 20 volunteers. Measurements were made on a 3T scanner using a breathhold DW spin-echo EPI (SE EPI) sequence.

Computed tomography imaging of patients with obstructive sleep apnea.

Objectives/hypothesis: This study used computed tomography (CT) to identify anatomic features of the awake upper respiratory tract (URT) that correlate with severity of obstructive sleep apnea (OSA).

Study Design: An IRB approved radiographic study of 80 patients with OSA and 56 patients from the general population.

Methods: Awake, noncontrast CT was performed from the skull base to the thoracic inlet in patients with OSA.