Suspected pulmonary embolism: prospective evaluation with pulmonary MR angiography.

摘要: PURPOSE: To prospectively evaluate three magnetic resonance (MR) imaging techniques for detection of pulmonary embolism. MATERIALS AND METHODS: Eighteen patients in whom the presence acute or chronic emboli was suspected underwent examination with following pulse sequences: cardiac-gated spin echo, cine spatial modulation magnetization, and two-dimensional time-of-flight breath-hold (PBH) MR angiography. Three radiologists independently blindly reviewed each case graded a total 518 arterial segments sequence continuous scale 0%-100% likelihood RESULTS: The overall sensitivity PBH angiography 0.85; emboli, which were smaller anteroposterior (AP) diameter, 0.42. Emboli larger than 1 cm AP diameter typically identified > 75% confidence all sequences. CONCLUSION: Acute greater cm...