Muitiderecct-rowcomputed Tomography Angiogphy For Diagnosia Of Coronary In Clinical Applications Analysis

ObjectiveStudy ofMultidetector-rowcomputed tomographycoronary angiography fordiagnosis of coronary heart disease in clinical applications.AnalysisMethodJune2011the hospital treatment of53cases of patients with suspected coronaryartery disease, multislice spiral (MDCT) CT coronary angiography, coronaryangiography (CAG) and intravascular Ultrasound (IVUS).Multilayer spiral (MDCT) CTused Piliphs iCT, check Qian has asked patients supine bit, patients calm breathing,scan Qian in chest specified location placed heart electric wire, connection heart electricguardianship monitoring heart rate, patients supine line chest are side bit positioninglike scan, tracheal lung bursting Xia1cm set for monitored cross broken level, roseactive pulse roots set for interest district, triggered threshold value for120HU, scandelay time8s.Injector elbow IV contrast at the rate of5ml/s (dimension,370mgI/ml),dose calculation basis for the1ml/kg, additional injections30ml normal saline.MDCTthin layer chromatographic scanning data information transmission to EBW processingworkstations, reconstruction method using multiplanar reconstruction (MPR), a volumerendering (VRT), surface reconstruction (CPR) and the maximum intensity projection(MIP).Image analysis focused on the stenosis degree of coronary artery and myocardialbridge cover depth and length, variation of tube with or without deformities.Diagnosisand internal medicine coronary angiography (CAG) and intravascular Ultrasound(IVUS) comparative analysis of the results and comparison of three diagnostic methodsfor sensitivity, diagnostic accuracy.Result53cases patients4main left main coronary artery include, left anterior descending and right coronary artery and left circumflex branch of a total of212developer well incheck.53cases patients multilayer spiral CT (MDCT) check main observation4rootmain vascular (left trunk, and left Qian drop support, and left swing support, and rightCrown pulse), multilayer spiral CT check results53cases patients this4root mainvascular amounted to narrow location up305Department, which left trunk minornarrow12cases, mild narrow17cases, in the degrees narrow9cases, heavy degreesnarrow4cases.Mild stenosis of left anterior descending,25cases,31cases of mildstenosis, stenosis in22cases,17cases of severe stenosis.Left circumflex branch of22cases of mild stenosis, mild stenosis in25cases, stenosis in27cases, severe stricture in16cases.23cases of right coronary artery mild stenosis, mild stenosis in25cases,18cases of stenosis,12cases of severe stenosis.53cases patients with coronaryangiography (CAG) check the4major vascular diseases total305,13cases of left maincoronary artery mild stenosis, mild stenosis in17cases, stenosis in9cases,4cases ofsevere stenosis.25cases of left anterior descending minor stenosis, mild stenosis of33cases, stenosis in22cases,17cases of severe stenosis.Left circumflex branch of22cases of mild stenosis, mild stenosis in25cases, stenosis in27cases, severe stricture in16cases.21cases of right coronary artery mild stenosis, mild stenosis in25cases,18cases of stenosis in,12cases of severe stenosis.53patients with intravascularUltrasound (IVUS) check the4major vascular diseases total305,13cases of left maincoronary artery mild stenosis, mild stenosis in17cases, stenosis in9cases,4cases ofsevere stenosis.25cases of left anterior descending minor stenosis, mild stenosis of31cases, stenosis in22cases,17cases of severe stenosis, left circumflex branch of21cases of mild stenosis, mild stenosis of26cases, stenosis in27cases, severe stricture in16cases.21cases of right coronary artery mild stenosis, mild stenosis of26cases,medium narrow18cases and12cases of severe stenosis.Multislice spiral CT (MDCT)coronary angiography (CAG) and intravascular Ultrasound (IVUS), multislice CT(MDCT) accuracy is97.7%, check leakage rate is2.3%.Coronary angiography (CAG)accuracy is98.36%, check leakage rate is1.64%.No significant statistical differencebetween the two (P>0.05).ConclusionalthoughMultidetector-rowcomputed tomographydiagnosis and Interventionaltreatment for coronary artery disease screening provides something...