PURPOSE: To clarify the frequency and distribution pattern of calcifications in all and in only non-assessable coronary arterial segments in symptomatic patients with coronary heart disease. MATERIALS AND METHODS: Among 2355 consecutive coronary CT angiographies performed using a 320-row ADCT, 1129 studies performed by prospective one-beat scanning without metallic and motion artifacts were evaluated. Frequency and degree of calcification were assessed for each coronary segment. Evaluations were performed in all and in only non-assessable segments, and the results were compared. RESULTS: Calcified segments were observed in 15.6 % of patients and 2.4 % of segments. The most extensively calcified segments were those in the proximal left anterior descending branch. 1.1 % of all of the segments were not assessable due to calcification, and 90 % of those non-assessable segments had high-grade calcifications. When the calcium score value was 1000 or 2000, the expected frequency of non-assessable segments was 27.5 or 53.5 %, respectively. CONCLUSION: There were specific features of the distribution of coronary arterial calcifications. It is important to be familiar with these features when deciding whether or not to perform subtraction CCTA.
PURPOSE: To clarify the frequency and distribution pattern of calcifications in all and in only non-assessable coronary arterial segments in symptomatic patients with coronary heart disease. MATERIALS AND METHODS: Among 2355 consecutive coronary CT angiographies performed using a 320-row ADCT, 1129 studies performed by prospective one-beat scanning without metallic and motion artifacts were evaluated. Frequency and degree of calcification were assessed for each coronary segment. Evaluations were performed in all and in only non-assessable segments, and the results were compared. RESULTS: Calcified segments were observed in 15.6 % of patients and 2.4 % of segments. The most extensively calcified segments were those in the proximal left anterior descending branch. 1.1 % of all of the segments were not assessable due to calcification, and 90 % of those non-assessable segments had high-grade calcifications. When the calcium score value was 1000 or 2000, the expected frequency of non-assessable segments was 27.5 or 53.5 %, respectively. CONCLUSION: There were specific features of the distribution of coronary arterial calcifications. It is important to be familiar with these features when deciding whether or not to perform subtraction CCTA.
Authors: Allen J Taylor; Manuel Cerqueira; John McB Hodgson; Daniel Mark; James Min; Patrick O'Gara; Geoffrey D Rubin; Christopher M Kramer; Daniel Berman; Alan Brown; Farooq A Chaudhry; Ricardo C Cury; Milind Y Desai; Andrew J Einstein; Antoinette S Gomes; Robert Harrington; Udo Hoffmann; Rahul Khare; John Lesser; Christopher McGann; Alan Rosenberg; Robert Schwartz; Marc Shelton; Gerald W Smetana; Sidney C Smith Journal: J Am Coll Cardiol Date: 2010-11-23 Impact factor: 24.094
Authors: W G Austen; J E Edwards; R L Frye; G G Gensini; V L Gott; L S Griffith; D C McGoon; M L Murphy; B B Roe Journal: Circulation Date: 1975-04 Impact factor: 29.690
Authors: Tamar S Polonsky; Robyn L McClelland; Neal W Jorgensen; Diane E Bild; Gregory L Burke; Alan D Guerci; Philip Greenland Journal: JAMA Date: 2010-04-28 Impact factor: 56.272
Authors: Morteza Naghavi; Peter Libby; Erling Falk; S Ward Casscells; Silvio Litovsky; John Rumberger; Juan Jose Badimon; Christodoulos Stefanadis; Pedro Moreno; Gerard Pasterkamp; Zahi Fayad; Peter H Stone; Sergio Waxman; Paolo Raggi; Mohammad Madjid; Alireza Zarrabi; Allen Burke; Chun Yuan; Peter J Fitzgerald; David S Siscovick; Chris L de Korte; Masanori Aikawa; K E Juhani Airaksinen; Gerd Assmann; Christoph R Becker; James H Chesebro; Andrew Farb; Zorina S Galis; Chris Jackson; Ik-Kyung Jang; Wolfgang Koenig; Robert A Lodder; Keith March; Jasenka Demirovic; Mohamad Navab; Silvia G Priori; Mark D Rekhter; Raymond Bahr; Scott M Grundy; Roxana Mehran; Antonio Colombo; Eric Boerwinkle; Christie Ballantyne; William Insull; Robert S Schwartz; Robert Vogel; Patrick W Serruys; Goran K Hansson; David P Faxon; Sanjay Kaul; Helmut Drexler; Philip Greenland; James E Muller; Renu Virmani; Paul M Ridker; Douglas P Zipes; Prediman K Shah; James T Willerson Journal: Circulation Date: 2003-10-07 Impact factor: 29.690