AJR. American journal of roentgenology
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AJR Am J Roentgenol · Nov 2007
Multicenter StudyDiagnostic performance of gadobenate dimeglumine enhanced MR angiography of the iliofemoral and calf arteries: a large-scale multicenter trial.
The purpose of this study was to compare gadobenate dimeglumine-enhanced MR angiography and unenhanced time-of-flight MR angiography for the detection of significant peripheral arterial occlusive disease using digital subtraction angiography as our reference standard. ⋯ Improved diagnostic performance and reproducibility are achievable with gadobenate dimeglumine-enhanced MR angiography in patients with peripheral arterial occlusive disease.
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AJR Am J Roentgenol · Nov 2007
Comparative StudyRelative threshold of detection of active arterial bleeding: in vitro comparison of MDCT and digital subtraction angiography.
The objective of our study was to determine the relative sensitivity and the lowest threshold of bleeding detectable with digital subtraction angiography (DSA) and with MDCT using an in vitro physiologic system. ⋯ In vitro, i.v. contrast-enhanced MDCT is more sensitive than first-order aortic branch-selective DSA in detecting active hemorrhage unless the catheter position is highly superselective and is close to the bleeding artery. These results suggest that MDCT can be used as the initial imaging technique in the diagnosis of active hemorrhage if the clinical condition of the patient allows.
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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.