+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Gastroepiploic artery coronary bypass graft: non-invasive patency evaluation using color and duplex Doppler ultrasonography



Gastroepiploic artery coronary bypass graft: non-invasive patency evaluation using color and duplex Doppler ultrasonography



European Journal of Cardio-Thoracic Surgery 11(1): 134-139



Color and duplex Doppler ultrasound and digital subtraction angiography were compared for the evaluation of graft patency of the gastroepiploic artery (GEA). In 77 observations, ultrasound and digital subtraction angiography were compared. The coronary resistance index (cRI) was defined as the maximal systolic flow velocity minus the maximal diastolic flow velocity, divided by the maximal systolic flow velocity. On digital subtraction angiography, the graft was considered patent, occluded, or patent but non-functional. Grafts were defined as non-functional when they had a diameter of less than 5F with the absence of opacification of the native coronary artery. Of the 77 observations, 64 GEAs were patent angiographically, three were occluded and ten grafts were considered as patent but non-functional. Using color and duplex ultrasound, the GEA was identified in 65 out of 77 observations. There were no cases of false positive visualization of the GEA. All sonographically detected non-functional grafts (n = 7) had a cRI of greater than 0.60. When the non-visualized grafts are considered either non-functional or occluded, a cut-off value for a cRI of 0.60 results in a sensitivity and specificity of 100 and 75%, respectively. We propose ultrasound as a primary screening tool for evaluating graft patency. While color Doppler is a suitable technique for graft visualization, spectral analysis with the calculation of a cRI is required for functional evaluation.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 046149968

Download citation: RISBibTeXText

PMID: 9030802

DOI: 10.1016/s1010-7940(96)01076-7


Related references

Evaluation of gastroepiploic artery bypass graft flow using Duplex Doppler echocardiography. Circulation 90(4 PART 2): I61, 1994

Color Doppler imaging of the right gastroepiploic artery as an in situ coronary artery bypass graft. European Journal of Radiology 15(1): 37-39, 1992

Evaluation of graft patency during minimally invasive coronary artery bypass grafting with Doppler flow analysis. Annals of Thoracic Surgery 70(4): 1350-1354, 2000

Evaluation of left internal mammary artery Left anterior descending coronary artery bypass graft patency by subclavian echo-Doppler duplex. Journal of the American College of Cardiology 21(2 SUPPL A): 345A, 1993

Gastroepiploic artery as an in situ coronary artery bypass graft: evaluation of MRI and colour Doppler ultrasound in follow-up. Scandinavian Journal of Thoracic and Cardiovascular Surgery 29(1): 7-10, 1995

Assessment of patency of bridge blood vessels after coronary artery bypass surgury by conventional ultrasonography combined with color Doppler coronary flow imaging. Zhongguo Chaosheng Yixue Zazhi 20(12): 907-911, 2004

Non-invasive imaging and functional evaluation of the right gastroepiploic artery as an in situ coronary artery bypass graft. Circulation 94(8 SUPPL ): I136, 1996

Transthoracic colour Doppler ultrasonography in the evaluation of internal thoracic artery bypass graft patency. Journal of International Medical Research 29(6): 503-507, 2002

Noninvasive assessment of right gastroepiploic artery graft patency using transcutaneous color Doppler echocardiography. Annals of Thoracic Surgery 67(3): 624-628, March, 1999

Color Doppler ultrasonography assessment of internal mammary artery flow dynamics before and after coronary artery bypass graft. Zhongguo Chaosheng Yixue Zazhi 15(4): 266-268, 1999

Evaluation of an internal thoracic artery as a coronary artery bypass graft by intercostal duplex scanning ultrasonography. Japanese Journal of Thoracic and Cardiovascular Surgery 49(6): 343-346, 2001

Importance of duplex scanning ultrasonography evaluation of the proximal internal thoracic artery as a coronary artery bypass graft. Japanese Journal of Thoracic and Cardiovascular Surgery 50(12): 554-555, 2003

Intra- and postoperative Doppler assessment of left internal mammary artery flow and graft patency in patients undergoing minimally invasive coronary artery bypass surgery. Journal of the American College of Cardiology 29(2 SUPPL A): 249A, 1997

Early and long-term patency of in situ skeletonized gastroepiploic artery after off-pump coronary artery bypass graft surgery. Annals of Thoracic Surgery 96(1): 90-95, 2013

Evaluation of the flow characteristics of an internal thoracic artery graft after coronary artery bypass grafting by intercostal Duplex scanning ultrasonography. Journal of Cardiovascular Surgery 48(5): 647-651, 2007