PURPOSE: To prospectively evaluate three magnetic resonance (MR) imaging techniques for detection of pulmonary embolism. MATERIALS AND METHODS: Eighteen patients in whom the presence of acute or chronic pulmonary emboli was suspected underwent examination with the following pulse sequences: cardiac-gated spin echo, cine spatial modulation of magnetization, and two-dimensional time-of-flight pulmonary breath-hold (PBH) MR angiography. Three radiologists independently and blindly reviewed each case and graded a total of 518 arterial segments for each pulse sequence with a continuous scale of 0%-100% for likelihood of pulmonary embolism. RESULTS: The overall sensitivity of PBH MR angiography for detection of acute pulmonary emboli was 0.85; for chronic emboli, which were smaller in anteroposterior (AP) diameter, the overall sensitivity was 0.42. Emboli larger than 1 cm in AP diameter were typically identified with > 75% confidence with all pulse sequences. CONCLUSION: Acute pulmonary emboli greater than 1 cm in AP diameter were as accurately identified on PBH MR angiograms obtained in 15 seconds as they were on MR images obtained with longer pulse sequences not dependent on breath holding.
PURPOSE: To prospectively evaluate three magnetic resonance (MR) imaging techniques for detection of pulmonary embolism. MATERIALS AND METHODS: Eighteen patients in whom the presence of acute or chronic pulmonary emboli was suspected underwent examination with the following pulse sequences: cardiac-gated spin echo, cine spatial modulation of magnetization, and two-dimensional time-of-flight pulmonary breath-hold (PBH) MR angiography. Three radiologists independently and blindly reviewed each case and graded a total of 518 arterial segments for each pulse sequence with a continuous scale of 0%-100% for likelihood of pulmonary embolism. RESULTS: The overall sensitivity of PBH MR angiography for detection of acute pulmonary emboli was 0.85; for chronic emboli, which were smaller in anteroposterior (AP) diameter, the overall sensitivity was 0.42. Emboli larger than 1 cm in AP diameter were typically identified with > 75% confidence with all pulse sequences. CONCLUSION: Acute pulmonary emboli greater than 1 cm in AP diameter were as accurately identified on PBH MR angiograms obtained in 15 seconds as they were on MR images obtained with longer pulse sequences not dependent on breath holding.
Authors: Donald G Benson; Mark L Schiebler; Michael D Repplinger; Christopher J François; Thomas M Grist; Scott B Reeder; Scott K Nagle Journal: Br J Radiol Date: 2017-04-12 Impact factor: 3.039
Authors: Frank Joseph Londy; Suzan Lowe; Paul D Stein; John G Weg; Robert L Eisner; Kenneth V Leeper; Pamela K Woodard; H Dirk Sostman; Kathleen A Jablonski; Sarah E Fowler; Charles A Hales; Russell D Hull; Alexander Gottschalk; David P Naidich; Thomas L Chenevert Journal: Clin Appl Thromb Hemost Date: 2011-10-12 Impact factor: 2.389
Authors: Mark L Schiebler; Scott K Nagle; Christopher J François; Michael D Repplinger; Azita G Hamedani; Karl K Vigen; Rajkumar Yarlagadda; Thomas M Grist; Scott B Reeder Journal: J Magn Reson Imaging Date: 2013-04-01 Impact factor: 4.813
Authors: Mark L Schiebler; Jitesh Ahuja; Michael D Repplinger; Christopher J François; Karl K Vigen; Thomas M Grist; Azita G Hamedani; Scott B Reeder; Scott K Nagle Journal: Eur J Radiol Date: 2016-05-19 Impact factor: 3.528
Authors: Michael D Repplinger; Scott K Nagle; John B Harringa; Aimee T Broman; Christopher R Lindholm; Christopher J François; Thomas M Grist; Scott B Reeder; Mark L Schiebler Journal: Emerg Radiol Date: 2018-05-10
Authors: Nanae Tsuchiya; Edwin Jr van Beek; Yoshiharu Ohno; Hiroto Hatabu; Hans-Ulrich Kauczor; Andrew Swift; Jens Vogel-Claussen; Jürgen Biederer; James Wild; Mark O Wielpütz; Mark L Schiebler Journal: World J Radiol Date: 2018-06-28