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RESEARCH PRODUCT
Spiral-CT zum Nachweis von Koronararterienverkalkungen und Vorhersage einer koronaren Herzerkrankung - Vergleich zur Durchleuchtung und Koronarangiographie
Claus P. HeusselThomas VoigtländerMeyer JManfred ThelenHu KauczorM. Braunsubject
Coronary angiographymedicine.medical_specialtymedicine.diagnostic_testbusiness.industrySlice thicknessmedicine.diseaseCoronary heart diseaseHelical ctStenosisInternal medicineAngiographymedicineCardiologyFluoroscopyRadiology Nuclear Medicine and imagingNuclear medicinebusinessCalcificationdescription
PURPOSE Evaluation of clinical relevance of coronary calcifications detected by helical CT. Evaluation of congruence with fluoroscopy (FS) and coronary angiography. Comparison with studies reporting on application of ultrafast computed tomography. MATERIALS AND METHODS 40 patients underwent helical CT (2 mm slice thickness, table-feed 3 mm/s). Coronary angiography and FS were performed in usual technique. Stenosis and calcifications were evaluated semiquantitatively. RESULTS 28 of 28 stenoses > or = 75% were detected via helical CT by evaluation of calcification (FS: 19). One non-detected solitary stenosis was calculated as 40%. FS did not detect 4 cases with 2-vessel and 3-vessel disease each one case with 1-vessel disease, and one case with a main stem stenosis. Sensitivity of helical CT was 97% (FS: 66%). For the evaluation of stenosis III degree (> or = 75%), sensitivity was 100% (FS: 58%), specificity was 77% (FS: 48%). CONCLUSION Helical CT is more sensitive for haemodynamically relevant stenoses than FS. Helical CT is suitable as a substantial non-invasive diagnostic procedure in coronary heart disease. In certain cases, e.g. if the patient suffers from additional risks, helical CT should be done prior to coronary angiography. Coronary calcifications found incidentally in symptomatic patients at chest CT warrant further cardiological investigation.
year | journal | country | edition | language |
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1997-07-01 | RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren |