Ultra-Low Contrast Computed Tomographic Angiography (CTA) With 20-mL Total Dose for Transcatheter Aortic Valve Implantation (TAVI) Planning

被引：33

作者：

Azzalini, Lorenzo ^{[1
,2
,3
]}

Abbara, Suhny ^{[1
]}

Ghoshhajra, Brian B. ^{[1
]}

机构：

[1] Massachusetts Gen Hosp, Dept Radiol, Boston, MA 02114 USA

[2] Massachusetts Gen Hosp, Ctr Heart, Boston, MA 02114 USA

[3] Univ Autonoma Barcelona, Dept Med, E-08193 Barcelona, Spain

来源：

JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY | 2014年 / 38卷 / 01期

关键词：

transcatheter aortic valve replacement; computed tomographic angiography; high-pitch dual-source; renal failure; low contrast; TUBE POTENTIAL SELECTION; IMAGE QUALITY; DEFINITIONS; ATTENUATION;

D O I：

10.1097/RCT.0b013e3182a14358

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Transcatheter aortic valve implantation workup includes assessment of the aorta and the iliofemoral arteries by computed tomographic angiography. An important group of transcatheter aortic valve implantation candidates have severe renal failure. We tested a novel computed tomographic angiography protocol (128-detector-row dual-source scanner, high-pitch helical mode) with ultralow contrast volume (20 mL) in 8 patients, compared with 8 controls. Contrast-to-noise ratio and subjective image quality, albeit lower than in the controls, were suitable for interpretation in the ultralow contrast volume group throughout all measured locations.

引用

页码：105 / 109

页数：5

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