PURPOSE: To evaluate the accuracy of double-helix computed tomography (CT) in coronary artery calcification detection and quantification. MATERIALS AND METHODS: One hundred sixty patients with coronary disease (135 men, 25 women; age range, 45-62 years), of whom 138 had obstructive (stenosis of > 50% of diameter; n = 129) or mild (< 50% stenosis; n = 9) coronary artery disease (CAD) and 22 had normal coronary arteries (per angiographic findings), and 56 age-matched healthy control subjects underwent double-helix CT. RESULTS: Double-helix CT findings indicated that calcification was significantly more prevalent in patients with CAD (> 83%) than in patients with normal coronary arteries (27%) or in healthy control subjects (34%; P < .01). Sensitivity in detecting obstructive CAD was high (91%); however, specificity was low (52%) because of calcification in nonobstructive lesions. Comparison of double-helix CT and angiographic findings indicated that double-helix CT was 84% accurate with positive and negative predictive values of 89% and 59%, respectively. CONCLUSION: Double-helix CT is a useful noninvasive method for detection and quantification of coronary artery calcification.
PURPOSE: To evaluate the accuracy of double-helix computed tomography (CT) in coronary artery calcification detection and quantification. MATERIALS AND METHODS: One hundred sixty patients with coronary disease (135 men, 25 women; age range, 45-62 years), of whom 138 had obstructive (stenosis of > 50% of diameter; n = 129) or mild (< 50% stenosis; n = 9) coronary artery disease (CAD) and 22 had normal coronary arteries (per angiographic findings), and 56 age-matched healthy control subjects underwent double-helix CT. RESULTS: Double-helix CT findings indicated that calcification was significantly more prevalent in patients with CAD (> 83%) than in patients with normal coronary arteries (27%) or in healthy control subjects (34%; P < .01). Sensitivity in detecting obstructive CAD was high (91%); however, specificity was low (52%) because of calcification in nonobstructive lesions. Comparison of double-helix CT and angiographic findings indicated that double-helix CT was 84% accurate with positive and negative predictive values of 89% and 59%, respectively. CONCLUSION: Double-helix CT is a useful noninvasive method for detection and quantification of coronary artery calcification.
Authors: N Reinsch; A A Mahabadi; N Lehmann; S Möhlenkamp; C Hoefs; B Sievers; T Budde; R Seibel; K-H Jöckel; R Erbel Journal: Br J Radiol Date: 2011-10-18 Impact factor: 3.039
Authors: E S Houslay; S J Cowell; R J Prescott; J Reid; J Burton; D B Northridge; N A Boon; D E Newby Journal: Heart Date: 2006-01-31 Impact factor: 5.994
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Authors: Shin Matsuoka; Tsuneo Yamashiro; Alejandro Diaz; Raúl San José Estépar; James C Ross; Edwin K Silverman; Yasuyuki Kobayashi; Mark T Dransfield; Brian J Bartholmai; Hiroto Hatabu; George R Washko Journal: Acad Radiol Date: 2010-10-13 Impact factor: 3.173
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