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type=\u0022text\/css\u0022 rel=\u0022stylesheet\u0022 href=\u0022\/\/d282kpwvnogo5m.cloudfront.net\/sites\/default\/files\/advagg_css\/css__ce2QY63WIanKyr8eSq7eavr1XQRRmFD6ZSmwpyJi8lM__zXwFqpqmxrZOXXcd_TpBQpjuELbmIP9wBR5UuTDWAO4__YJWWMMdfCJuAFm5cUEp88OsodhO3ZA-2lzRfoBsSlk4.css\u0022 media=\u0022all\u0022 \/\u003E\n\u003Clink rel=\u0027stylesheet\u0027 type=\u0027text\/css\u0027 href=\u0027\/sites\/all\/modules\/contrib\/panels\/plugins\/layouts\/onecol\/onecol.css\u0027 \/\u003E\u003C\/head\u003E\u003Cbody\u003E\u003Cdiv class=\u0022panels-ajax-tab-panel panels-ajax-tab-panel-sageoa-tab-art\u0022\u003E\u003Cdiv class=\u0022panel-display panel-1col clearfix\u0022 \u003E\n  \u003Cdiv class=\u0022panel-panel panel-col\u0022\u003E\n    \u003Cdiv\u003E\u003Cdiv class=\u0022panel-pane pane-highwire-markup\u0022 \u003E\n  \n      \n  \n  \u003Cdiv class=\u0022pane-content\u0022\u003E\n    \u003Cdiv class=\u0022highwire-markup\u0022\u003E\u003Cdiv xmlns=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022 id=\u0022content-block-markup\u0022 xmlns:xhtml=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022\u003E\u003Cdiv class=\u0022article fulltext-view \u0022\u003E\u003Cspan class=\u0022highwire-journal-article-marker-start\u0022\u003E\u003C\/span\u003E\u003Cdiv class=\u0022section abstract\u0022 id=\u0022abstract-1\u0022\u003E\u003Ch2\u003ESummary\u003C\/h2\u003E\n            \u003Cp id=\u0022p-1\u0022\u003EMultidetector computed tomography angiography (MDCTA) may offer a noninvasive alternative for evaluating coronary artery anatomy in patients with suspected coronary artery disease. This imaging modality has good diagnostic accuracy for determining the presence of significant coronary artery stenosis in symptomatic patients and also identified those who were likely to be referred for a revascularization procedure (angioplasty or coronary bypass surgery).\u003C\/p\u003E\n         \u003C\/div\u003E\u003Cul class=\u0022kwd-group\u0022\u003E\u003Cli class=\u0022kwd\u0022\u003Eradiography\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003Ecardiac imaging techniques clinical trials\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003Eimaging modalities\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003Ecoronary artery disease\u003C\/li\u003E\u003C\/ul\u003E\u003Cdiv class=\u0022section\u0022 id=\u0022sec-1\u0022\u003E\n         \n         \u003Cp id=\u0022p-2\u0022\u003EMultidetector computed tomography angiography (MDCTA) may offer a noninvasive alternative for evaluating coronary artery anatomy in patients with suspected coronary artery disease (CAD). This imaging modality has good diagnostic accuracy for determining the presence of significant coronary artery stenosis in symptomatic patients and also identified those who were likely to be referred for a revascularization procedure (angioplasty or coronary bypass surgery).\u003C\/p\u003E\n         \u003Cp id=\u0022p-3\u0022\u003E\u201cOur interpretation of this analysis is that multidetector CT will become an integral part of the diagnostic algorithm in patients with coronary artery disease,\u201d said Julie Miller, MD, Johns Hopkins University, Baltimore, MD, who reported on the study.\u003C\/p\u003E\n         \u003Cp id=\u0022p-4\u0022\u003EThe international, multicenter, trial (CORE-64) was the first prospective study to compare 64-row 0.5 mm MDCTA with \u2013 quantitative coronary angiography (QCA). The final analysis was done on data for 291 patients (868 vessels; 3,782 segments) who were a median of 59 years old and had an Agatston calcium score \u2264600 (a score of \u0026gt;400 indicates a high likelihood of at least one stenosis). The patients had ECG-gated contrast-enhanced 64-slice MDCT (0.5 mm slice thickness) within 30 days before scheduled QCA and were followed up for clinical events at 30 days and 6 months.\u003C\/p\u003E\n         \u003Cp id=\u0022p-5\u0022\u003EThe study differed from other studies in that the entire coronary tree was analyzed, said Dr. Miller; all nonstented segments of at least 1.5 mm were evaluated by both methods. Significant stenosis by QCA was defined as more than 50% stenosis. The diagnostic accuracy (sensitivity and specificity) of MDCTA for identifying significant stenosis (compared with QCA) was the primary endpoint.\u003C\/p\u003E\n         \u003Cp id=\u0022p-6\u0022\u003EThe diagnostic performance of MDCTA was better on a per patient basis than on a per vessel basis. On a per patient basis, MDCTA had a sensitivity of 85% and a specificity of 90% (\u003Ca id=\u0022xref-table-wrap-1-1\u0022 class=\u0022xref-table\u0022 href=\u0022#T1\u0022\u003ETable 1\u003C\/a\u003E). In contrast, the sensitivity and specificity were 76% and 93%, respectively, on a per vessel basis. Dr. Miller noted that MDCTA was highly diagnostic based on receiver operating characteristics (ROC) analysis of the data \u2013 the ROC area was 93% on a per patient basis, and 91% on a per vessel basis. The ability of MDCTA to predict the need for revascularization was similar to that of QCA; the ROC area for MDCTA was 0.84 compared with 0.82 for QCA (p=0.36) on a per patient basis and 0.84 and 0.89, respectively, on a per vessel basis.\u003C\/p\u003E\n         \u003Cdiv id=\u0022T1\u0022 class=\u0022table pos-float\u0022\u003E\u003Cdiv class=\u0022table-inline\u0022\u003E\u003Cdiv class=\u0022callout\u0022\u003E\u003Cspan\u003EView this table:\u003C\/span\u003E\u003Cul class=\u0022callout-links\u0022\u003E\u003Cli class=\u00220 first\u0022\u003E\u003Ca href=\u0022\/\u0022 class=\u0022table-expand-inline\u0022 data-table-url=\u0022\/highwire\/markup\/10852\/expansion?postprocessors=highwire_figures%2Chighwire_math%2Chighwire_inline_linked_media%2Chighwire_embed\u0026amp;table-expand-inline=1\u0022 html=\u00221\u0022 fragment=\u0022#\u0022 external=\u00221\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView inline\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00221\u0022\u003E\u003Ca href=\u0022\/highwire\/markup\/10852\/expansion?width=1000\u0026amp;height=500\u0026amp;iframe=true\u0026amp;postprocessors=highwire_figures%2Chighwire_math%2Chighwire_inline_linked_media\u0022 class=\u0022colorbox colorbox-load table-expand-popup\u0022 rel=\u0022gallery-fragment-tables\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView popup\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00222 last\u0022\u003E\u003Ca href=\u0022\/highwire\/powerpoint\/10852\u0022 class=\u0022highwire-figure-link highwire-figure-link-ppt\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload powerpoint\u003C\/a\u003E\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv class=\u0022table-caption\u0022\u003E\u003Cspan class=\u0022table-label\u0022\u003ETable 1.\u003C\/span\u003E \n               \u003Cp id=\u0022p-7\u0022 class=\u0022first-child\u0022\u003EComparison of Diagnostic Accuracy of 64-Row MDCTA (Compared with QCA) on Per Patient and Per Vessel Basis.\u003C\/p\u003E\n            \u003Cdiv class=\u0022sb-div caption-clear\u0022\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\n         \u003Cp id=\u0022p-10\u0022\u003EPrevious studies have shown highly variable results for the diagnostic accuracy of MDCTA, but Dr. Miller pointed out that those studies were single-center studies and did not compare MDCTA with QCA in predicting revascularization.\u003C\/p\u003E\n      \u003C\/div\u003E\u003Cul class=\u0022copyright-statement\u0022\u003E\u003Cli class=\u0022fn\u0022 id=\u0022copyright-statement-1\u0022\u003E\u00a9 2007 MD Conference Express\u003C\/li\u003E\u003C\/ul\u003E\u003Cspan class=\u0022highwire-journal-article-marker-end\u0022\u003E\u003C\/span\u003E\u003C\/div\u003E\u003Cspan id=\u0022related-urls\u0022\u003E\u003C\/span\u003E\u003C\/div\u003E\u003Ca href=\u0022http:\/\/mdc.sagepub.com\/content\/7\/7\/15.abstract\u0022 class=\u0022hw-link hw-link-article-abstract\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView Summary\u003C\/a\u003E\u003C\/div\u003E  \u003C\/div\u003E\n\n  \n  \u003C\/div\u003E\n\u003C\/div\u003E\n  \u003C\/div\u003E\n\u003C\/div\u003E\n\u003C\/div\u003E\u003Cscript type=\u0022text\/javascript\u0022 src=\u0022http:\/\/mdc.sagepub.com\/sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_openurl.js?nzm6y1\u0022\u003E\u003C\/script\u003E\n\u003Cscript type=\u0022text\/javascript\u0022 src=\u0022http:\/\/mdc.sagepub.com\/sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_tables.js?nzm6y1\u0022\u003E\u003C\/script\u003E\n\u003C\/body\u003E\u003C\/html\u003E"}