Maximal blood flow acceleration analysis in the early diastolic phase for in situ internal thoracic artery bypass grafts: a new transit-time flow measurement predictor of graft failure following coronary artery bypass grafting

Autor:	Takemi Handa, Takashi Fukutomi, Kazumasa Orihashi, Miwa Tashiro, Nobuo Kondo, Hideaki Nishimori, Masaki Yamamoto
Rok vydání:	2015
Předmět:	Pulmonary and Respiratory Medicine Male medicine.medical_specialty Graft failure Time Factors Bypass grafting Acceleration Diastole Transit time Internal thoracic artery Coronary Angiography Decision Support Techniques Predictive Value of Tests Risk Factors medicine.artery Internal medicine Coronary Circulation Multidetector Computed Tomography Medicine Humans Treatment Failure Internal Mammary-Coronary Artery Anastomosis Aged Retrospective Studies business.industry Graft Occlusion Vascular Models Cardiovascular Blood flow Middle Aged Coronary Vessels medicine.anatomical_structure Cardiology Early diastolic Radiographic Image Interpretation Computer-Assisted Surgery Female Cardiology and Cardiovascular Medicine business Rheology Blood Flow Velocity Artery
Zdroj:	Interactive cardiovascular and thoracic surgery. 20(4)
ISSN:	1569-9285
Popis:	OBJECTIVES: Maximal graft flow acceleration (max df/dt) determined by transit-time flowmetry (TTFM) in the diastolic phase was assessed as a possible predictor of graft failure in coronary artery bypass patients. METHODS: Max df/dt was retrospectively measured in 57 in situ left internal thoracic artery grafts. TTFM data were fitted to a 5-polynomial curve, which was derived from the first-derivative curve to measure max df/dt (5-polymial max df/dt). Abnormal TTFM was defined as a mean flow of 5 or diastolic filling ratio of
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8e11d9009c744cd94603730266780e8 https://pubmed.ncbi.nlm.nih.gov/25574034 Zobrazit plný text záznamu