Pulmonary angiography with MR imaging: preliminary clinical experience.

Abstract

This report describes an early clinical implementation of new MR pulmonary angiographic techniques. Further advances to improve specificity by enhancing sensitivity to slow flow and increasing spatial resolution are necessary before routine clinical use of MR pulmonary angiography is justified.

Magnetic Resonance Angiography

“…19 MS-325 (EPIX Medical, Inc and Mallinckrodt Inc), a gadolinium-chelate that binds noncovalently to plasma albumin, has been shown to enhance the lower extremity and carotid vessels in the steady state as well as to enhance the arteries of the lower extremity during the first pass in a manner comparable to the currently available extracellular gadolinium chelates. 22 The potential clinical applications of these agents await the results of large-scale multicenter clinical trials.…”

Incidence of actionable findings on contrast enhanced magnetic resonance angiography ordered for pulmonary embolism evaluation

“…Intravenous contrast-enhanced magnetic resonance angiography (MRA) is increasingly used to identify the presence of PE without exposing patients to ionizing radiation [22][23][24][25][26][27][28][29][30]. MRA can also be used safely in those patients with an iodinated contrast allergy [26].…”

Diagnosis of Pulmonary Embolism with Magnetic Resonance Angiography

“…The initial results were poor because of respiratory-motion artifact and poor contrast between flowing blood and an embolus. [15][16][17][18][19][20][21][22][23][24] The use of faster magnetic resonance hardware combined with dynamic gadolinium enhancement has made it possible to perform high-resolution angiography during a single suspended breath. This technique has already proved successful in detecting abnormalities in the thoracic and abdominal aorta and visceral arteries.…”