Fourty-five patients with portal hypertension were evaluated by means of magnetic resonance imaging (MRI). Of these, 35 were studied with conventional spin-echo techique on T1 and T2 weighted sequences. In 10 patients, additional MR angiography was performed. MRI examination has proved to be useful for the detection of portal hypertension and the evaluation of caliber and direction of the portal trunk; the collateral circle was also appreciable. The contemporary assessment of liver and spleen was particularly helpful to define the causes of the disease and the splenic engorgement. Magnetic resonance angiography was performed on a selected number of patients and allowed for visualization of the portal trunk, proximal tract of the two branches and collateral circles, that were appreciable in 2 cases. The images obtained were comparable to those obtained with mesenteric angiography during portographic phase.
Portal hypertension: Role of magnetic resonance imaging and magnetic resonance angiography in the diagnosis and follow-up [IPERTENSIONE PORTALE: RUOLO DELLA RISONANZA MAGNETICA E DELL'ANGIOGRAFIA A RISONANZA MAGNETICA NELLA DIAGNOSI E NEL FOLLOW-UP
SPLENDIANI, ALESSANDRA;
1993-01-01
Abstract
Fourty-five patients with portal hypertension were evaluated by means of magnetic resonance imaging (MRI). Of these, 35 were studied with conventional spin-echo techique on T1 and T2 weighted sequences. In 10 patients, additional MR angiography was performed. MRI examination has proved to be useful for the detection of portal hypertension and the evaluation of caliber and direction of the portal trunk; the collateral circle was also appreciable. The contemporary assessment of liver and spleen was particularly helpful to define the causes of the disease and the splenic engorgement. Magnetic resonance angiography was performed on a selected number of patients and allowed for visualization of the portal trunk, proximal tract of the two branches and collateral circles, that were appreciable in 2 cases. The images obtained were comparable to those obtained with mesenteric angiography during portographic phase.Pubblicazioni consigliate
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