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Titolo:
Volumetric quantification of coronary artery calcifications using dual-slice spiral CT scanner: Improved reproducibility of measurements with 180 degrees linear interpolation algorithm
Autore:
Qanadli, SD; Mesurolle, B; Aegerter, P; Joseph, T; Oliva, VL; Guertin, MC; Dubourg, O; Fauchet, M; Goeau-Brissonniere, OA; Lacombe, P;
Indirizzi:
Univ Paris 05, Serv Radiol, Hop Ambroise Pare, Dept Radiol, F-92104 Boulogne, France Univ Paris 05 Boulogne France F-92104 t Radiol, F-92104 Boulogne, France Univ Paris 05, Dept Cardiol, Hop Ambroise Pare, F-92104 Boulogne, France Univ Paris 05 Boulogne France F-92104 ise Pare, F-92104 Boulogne, France Univ Paris 05, Dept Biostat, Hop Ambroise Pare, F-92104 Boulogne, France Univ Paris 05 Boulogne France F-92104 ise Pare, F-92104 Boulogne, France Univ Paris 05, Dept Vasc Surg, Hop Ambroise Pare, F-92104 Boulogne, FranceUniv Paris 05 Boulogne France F-92104 ise Pare, F-92104 Boulogne, France Univ Technol Compiegne, F-60206 Compiegne, France Univ Technol Compiegne Compiegne France F-60206 -60206 Compiegne, France Univ Montreal, Montreal, PQ, Canada Univ Montreal Montreal PQ CanadaUniv Montreal, Montreal, PQ, Canada
Titolo Testata:
JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY
fascicolo: 2, volume: 25, anno: 2001,
pagine: 278 - 286
SICI:
0363-8715(200103/04)25:2<278:VQOCAC>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
ULTRAFAST COMPUTED-TOMOGRAPHY; ELECTRON-BEAM CT; HUMAN ATHEROSCLEROTIC LESIONS; HELICAL CT; PROGNOSTIC-SIGNIFICANCE; PHYSICAL PERFORMANCE; AORTIC DISSECTION; MOTION ARTIFACTS; CALCIUM; DISEASE;
Keywords:
atherosclerosis; computed tomography, helical; angiography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Qanadli, SD Univ Paris 05, Serv Radiol, Hop Ambroise Pare, Dept Radiol, 9 Ave Charles de Gaulle, F-92104 Boulogne, France Univ Paris 05 9 Ave Charlesde Gaulle Boulogne France F-92104
Citazione:
S.D. Qanadli et al., "Volumetric quantification of coronary artery calcifications using dual-slice spiral CT scanner: Improved reproducibility of measurements with 180 degrees linear interpolation algorithm", J COMPUT AS, 25(2), 2001, pp. 278-286

Abstract

Purpose: The purpose of this work was to determine the reproducibility of coronary total calcium score (TCS) with dual-slice helical CT and compare three acquisition protocols. Method: Fifty patients (59 +/- 10 years old) underwent dual-slice helical CT (collimation = 2 x 2.5 mm) and coronary angiography. Two successive scans were performed, resulting in three sets of images: pitch = 1, 360 degreeslinear interpolation (LI) (A360); pitch = 1, 180 degrees LI (A180); and pitch = 1.5, 180 degrees LI (B180), TCS values, calculated using a volumetricmethod with a threshold of 90 HU, were compared, and the interscan variation was determined. Diagnostic performances were compared with receiver operating characteristic curves. Results: Protocol A360 provided significantly lower TCS than protocols A180 and B180 (p < 0.0001), No statistical difference was seen between A180 and B180, which provided the lowest interscan variation (40 +/- 58%). However, no significant clinical impact of the observed interscan variations was found. Conclusion: Reproducibility of TCS with dual-slice helical CT is improved by the 180 LI algorithm. However, dual-slice helical CT is not sufficientlyreproducible to allow serial quantification of TCS over time.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 14:32:28