PURPOSE: To prospectively test the hypothesis that intraprocedural transcatheter intraarterial perfusion (TRIP) magnetic resonance (MR) imaging can be used to successfully measure reductions in perfusion to the targeted hepatocellular carcinoma (HCC) and the adjacent surrounding liver tissue during MR-interventional radiology (IR)-monitored transcatheter arterial chemoembolization (TACE). MATERIALS AND METHODS: This HIPAA-compliant prospective study was approved by the institutional review board. An MR-IR unit was used to perform TACE in 10 patients with HCC (seven male, three female; eight younger than 69 years, two older than 69 years). Intraprocedural reductions in tumor perfusion before and after TACE were monitored with TRIP MR imaging. Time-signal intensity curves were derived, and semiquantitative spatially resolved area under the time-signal intensity curve maps of tumor perfusion before and after TACE were produced. Mean perfusion values before and after TACE for liver tumors and adjacent liver tissue were compared by using a mixed-model analysis, with alpha = .05. RESULTS: Perfusion reductions were measured successfully with TRIP MR imaging in 18 separate tumors during 13 treatment sessions. Perfusion maps showed significant perfusion reductions for tumors (P < .013) but not for adjacent nontumorous liver tissue (P = .21). For tumors, the mean perfusion value was 193 arbitrary units (AU) +/- 223 (standard deviation) before TACE and 45.3 AU +/- 91.9 after TACE, with a mean reduction in baseline perfusion of 74.6% +/- 24.8. For adjacent liver tissue, the mean perfusion value was 124 AU +/- 93.5 before TACE and 93.2 AU +/- 72.3 after TACE, with a mean reduction in baseline perfusion of 24.2% +/- 14.5. CONCLUSION: TRIP MR imaging can be used to detect intraprocedural changes in perfusion to HCC and surrounding liver parenchyma during MR-IR-monitored TACE. (c) RSNA, 2008.
PURPOSE: To prospectively test the hypothesis that intraprocedural transcatheter intraarterial perfusion (TRIP) magnetic resonance (MR) imaging can be used to successfully measure reductions in perfusion to the targeted hepatocellular carcinoma (HCC) and the adjacent surrounding liver tissue during MR-interventional radiology (IR)-monitored transcatheter arterial chemoembolization (TACE). MATERIALS AND METHODS: This HIPAA-compliant prospective study was approved by the institutional review board. An MR-IR unit was used to perform TACE in 10 patients with HCC (seven male, three female; eight younger than 69 years, two older than 69 years). Intraprocedural reductions in tumor perfusion before and after TACE were monitored with TRIP MR imaging. Time-signal intensity curves were derived, and semiquantitative spatially resolved area under the time-signal intensity curve maps of tumor perfusion before and after TACE were produced. Mean perfusion values before and after TACE for liver tumors and adjacent liver tissue were compared by using a mixed-model analysis, with alpha = .05. RESULTS: Perfusion reductions were measured successfully with TRIP MR imaging in 18 separate tumors during 13 treatment sessions. Perfusion maps showed significant perfusion reductions for tumors (P < .013) but not for adjacent nontumorous liver tissue (P = .21). For tumors, the mean perfusion value was 193 arbitrary units (AU) +/- 223 (standard deviation) before TACE and 45.3 AU +/- 91.9 after TACE, with a mean reduction in baseline perfusion of 74.6% +/- 24.8. For adjacent liver tissue, the mean perfusion value was 124 AU +/- 93.5 before TACE and 93.2 AU +/- 72.3 after TACE, with a mean reduction in baseline perfusion of 24.2% +/- 14.5. CONCLUSION: TRIP MR imaging can be used to detect intraprocedural changes in perfusion to HCC and surrounding liver parenchyma during MR-IR-monitored TACE. (c) RSNA, 2008.
Authors: Yang Guo; Yue Zhang; Ning Jin; Rachel Klein; Jodi Nicolai; Robert J Lewandowski; Robert K Ryu; Reed A Omary; Andrew C Larson Journal: Invest Radiol Date: 2012-02 Impact factor: 6.016
Authors: Johnathan C Chung; Neel K Naik; Robert J Lewandowski; Jie Deng; Mary F Mulcahy; Laura M Kulik; Kent T Sato; Robert K Ryu; Riad Salem; Andrew C Larson; Reed A Omary Journal: World J Gastroenterol Date: 2010-07-07 Impact factor: 5.742
Authors: Johnathan C Chung; Dingxin Wang; Robert J Lewandowski; Richard Tang; Howard B Chrisman; Robert L Vogelzang; Gayle E Woloschak; Andrew C Larson; Reed A Omary; Robert K Ryu Journal: J Magn Reson Imaging Date: 2010-05 Impact factor: 4.813
Authors: Dingxin Wang; Brian Jin; Robert J Lewandowski; Robert K Ryu; Kent T Sato; Mary F Mulcahy; Laura M Kulik; Frank H Miller; Riad Salem; Debiao Li; Reed A Omary; Andrew C Larson Journal: J Magn Reson Imaging Date: 2010-05 Impact factor: 4.813
Authors: Dingxin Wang; Ron C Gaba; Brian Jin; Ahsun Riaz; Robert J Lewandowski; Robert K Ryu; Kent T Sato; Ann B Ragin; Laura M Kulik; Mary F Mulcahy; Riad Salem; Andrew C Larson; Reed A Omary Journal: Acad Radiol Date: 2011-07 Impact factor: 3.173
Authors: Dingxin Wang; Sumeet Virmani; Richard Tang; Barbara Szolc-Kowalska; Gayle Woloschak; Reed A Omary; Andrew C Larson Journal: Magn Reson Med Date: 2008-10 Impact factor: 4.668
Authors: Ron C Gaba; Dingxin Wang; Robert J Lewandowski; Robert K Ryu; Kent T Sato; Laura M Kulik; Mary F Mulcahy; Andrew C Larson; Riad Salem; Reed A Omary Journal: J Vasc Interv Radiol Date: 2008-09-25 Impact factor: 3.464
Authors: Carmen Gacchina Johnson; Karun V Sharma; Elliot B Levy; David L Woods; Aaron H Morris; John D Bacher; Andrew L Lewis; Bradford J Wood; Matthew R Dreher Journal: J Vasc Interv Radiol Date: 2015-08-28 Impact factor: 3.464