Abstract #4479

Influence of Slice-Selective Tag Thickness for Non-Contrast-Enhanced Pulmonary MR Venography Based on ECG-Gated 3D Time-Spatial Labeling Inversion Pulse (Time-SLIP) Technique

Nobukazu Aoyama¹, Yoshiharu Ohno²,³, Mizuho Nishio²,³, Hisanobu Koyama⁴, Takeshi Yoshikawa²,³, Sumiaki Matsumoto²,³, Katsusuke Kyotani¹, Saori Satou⁵, Hideaki Kawamitsu¹, Satoru Takahashi¹,⁴, Kazuro Sugimura⁴

¹Center forRadiology and Radiation Oncology, Kobe University Hospital, Kobe, Hyogo, Japan; ²Advanced Biomedical Imaging Research Center, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan; ³Division of Functional and Diagnostic Imaging Research, Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan; ⁴Division of Radiology, Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan; ⁵Toshiba Medical Systems, Ohtawara, Tochigi, Japan

2D or 3D time spatial labeling inversion pulse (time-SLIP) techniques is clinically applied as one of the non-contrast-enhanced pulmonary MR angiography in routine clinical practice. This technique has been suggested as having the capability of separation between pulmonary artery and vein, although the separation of pulmonary vein from artery is more difficult than latter from former. In addition, no one has assessed the influence of slice-selective Tag pulse thickness for time-SLIP technique. The purpose of this study was to prospectively and directly compare the influence of slice-selective Tag thickness for pulmonary MR venography using time-SLIP technique at in vivo study.