Academic radiology
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The aim of the study is to develop a theory-based signal calibration approach to be used for the conversion of signal-time curves to absolute contrast concentration-time curves for first-pass contrast-enhanced quantitative myocardial perfusion studies. ⋯ This theory-based signal calibration approach can be used to perform rapid T1 mapping and provides flexibility for in vivo calibration of signal-time curves resulting from dual-delay-time first-pass contrast-enhanced acquisitions.
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The aim of the study is to evaluate the effectiveness of an Emergency Radiology (ER) Core Curriculum training module and a Digital Imaging and Communications in Medicine (DICOM)-based interactive examination system to prepare first-year (postgraduate year 2 [PGY-2]) radiology residents and assess their readiness for taking overnight radiology call. ⋯ First-year radiology residents who underwent 6 months of formal radiology training followed by an intensive ER lecture series before taking overnight call had scores similar to upper-level colleagues on an interactive computer-based ER simulation module.
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The imaging systems and protocols used during ventilation-perfusion lung (V-P) scintigraphy and computed tomographic (CT) pulmonary angiography (CTPA) can affect diagnostic performance. We investigated the level of awareness of these factors among US clinicians who refer patients for imaging for suspected acute pulmonary embolism. ⋯ Although state-of-the-art equipment is important to them, clinicians practicing in the United States have limited knowledge of the equipment being used during CTPA and V-P scintigraphy scanning in their communities. Radiologists should intensify efforts to familiarize their clinical colleagues with the equipment they use.
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Bladder rupture is a potentially serious injury in blunt trauma patients. We determined whether location and displacement of pelvic fractures and the degree of hematuria can accurately predict bladder injury. ⋯ Patients with isolated acetabular fractures and patients with <30 RBC/HPF did not sustain bladder injury. In addition to hematuria, specific pelvic injury patterns are associated with bladder rupture. If validated, a clinical prediction rule derived from this data has the potential to guide the care of the blunt trauma patient.
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This review paper tracks the growth in the evidence supporting the use of percutaneous vertebroplasty for painful osteoporotic vertebral compression fractures. The rapidly increasing numbers of publications in the literature between 1994 and 2004 are documented. Despite the relatively large volume of research on this topic, several technology appraisals undertaken by international health policy makers reported inadequate high-quality evidence. Policy makers' reimbursement decisions for vertebroplasty and their options when faced with imperfect evidence are discussed.