ISSN:
1432-1084
Keywords:
Pulmonary arteries
;
Embolism
;
Hypertension
;
Gadolinium
;
MR
;
Contrast enhancement
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract We evaluated the use of contrast-enhanced MR tomoangiography of the major pulmonary arteries in patients with suspected pulmonary embolism and hilar lung carcinoma. Patients with acute pulmonary emboli of the major pulmonary arteries, pulmonary hypertension (n = 11), and hilar lung carcinoma with suspected infiltrated pulmonary artery (n = 4), underwent MRI after selective digital subtraction pulmonary angiography (DSA). Subsecond contrast-enhanced MR tomoangiograms were obtained in the long axis of each pulmonary artery after bolus injection of a paramagnetic MR contrast agent. All proximal thrombi visualized using DSA (n = 13) were depicted using contrast-enhanced MR tomoangiography. Pulmonary artery obstruction (n = 2) or stenosis (n = 2) by the tumor were similarly assessed by DCMRA and DSA. Contrast-enhanced MR tomoangiography allows a reproducible, fast, dynamic, and multiplanar good quality imaging of the major pulmonary arteries and their proximal branches. This technique may be useful in patients with pulmonary hypertension for whom DSA is dangerous, and in the diagnosis of malignant involvement of central pulmonary arteries.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00190931
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