AJR. American journal of roentgenology
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AJR Am J Roentgenol · Nov 2007
Controlled Clinical TrialPerioperative endovascular internal iliac artery occlusion balloon placement in management of placenta accreta.
The purpose of our study was to evaluate the efficacy of the perioperative placement of occlusion balloons within the internal iliac arteries in reducing intraoperative blood loss and transfusion requirements during cesarean delivery for women with placenta accreta or its variants. ⋯ Perioperative internal iliac artery occlusion balloon placement is a safe and minimally invasive technique that reduces intraoperative blood loss and transfusion requirements in patients with placenta accreta and its variants undergoing cesarean delivery.
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AJR Am J Roentgenol · Nov 2007
Practice patterns in imaging of the pregnant patient with abdominal pain: a survey of academic centers.
The purpose of our study was to evaluate current practice patterns in the imaging of pregnant women with abdominal complaints. ⋯ Most academic radiology departments have written policies regarding imaging of pregnant women. Academic radiologists prefer CT to MRI for imaging abdominal complaints in pregnant women, especially in the second and third trimesters.
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AJR Am J Roentgenol · Oct 2007
Dynamic contrast-enhanced MRI of prostate cancer at 3 T: a study of pharmacokinetic parameters.
The objectives of our study were to determine whether dynamic contrast-enhanced MRI performed at 3 T and analyzed using a pharmacokinetic model improves the diagnostic performance of MRI for the detection of prostate cancer compared with conventional T2-weighted imaging, and to determine which pharmacokinetic parameters are useful in diagnosing prostate cancer. ⋯ MRI of the prostate performed at 3 T using an endorectal coil produces high-quality T2-weighted images; however, specificity for prostate cancer is improved by also performing dynamic contrast-enhanced MRI and using pharmacokinetic parameters, particularly K(trans) and k(ep), for analysis. These results are comparable to published results at 1.5 T.
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AJR Am J Roentgenol · Sep 2007
Indeterminate CT angiography in blunt thoracic trauma: is CT angiography enough?
The primary objective of our study was to determine whether catheter angiography is needed to exclude aortic and intrathoracic great vessel injury when CT angiography (CTA) findings are indeterminate (mediastinal hematoma without direct evidence of aortic or intrathoracic great vessel injury). The secondary objective was to devise a classification scheme for mediastinal hematomas. ⋯ When CTA is indeterminate in blunt thoracic trauma, conventional angiography is unlikely to show an aortic or intrathoracic great vessel injury and may be unnecessary. A grading system for mediastinal hematomas could help triage patients to conventional angiography when further imaging is desired.