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Research paper thumbnail of Arterial responses to balloon coronary angioplasty: An intravascular ultrasound study

Journal of the American College of Cardiology, 1992

The purpose of this study was to examine the cwonary artery repo"w to prcutanmws trmIslumtnal mmn... more The purpose of this study was to examine the cwonary artery repo"w to prcutanmws trmIslumtnal mmnrry angiopiasry by using intravascular ultrawuwJ. Eackzmmd. The immediate e&cts of comnw aneioplestv on belore and imp&d 1; I!? t 11% alter angiop&y. Calclum was visualized in 7 (24%) of the 29 aogioplasty sib by Euomscopy verse 15 (52%) of sites by intravawular ultraswad (p = 0.022). Arterial diwction aftpr angiopbasty wzs observed in 8 (27%) of c&se by contrast sngiograpky venus 24 (83%, by intrava,wu,s~ abrasound (p < 0.001). ,i,:-avascular ultrasaud detected exteo. slvedtswtion st tbeangloplarty site in II (73%) oftbe 15 c&lAPd plaques and in ollry 3 (21%) nf tke 14 nmwakified plsques (p = 0.024). Arterial expmwiom (d&ad 8s the area within Ike external elastic membrane at tke angknplrty site greater lban that of Ike pmximal reference q-t) occurred in 29% OrcsLibIed plaques compared wltb 86% ofnoocakttted plaque (p = 0.007). Conclusianr. Intravawulnr ultrawund is more sensitive tbnn angiograpby for idrntirying nrfprip, calcium and disarettm, at the site oi angioplasty. At the site of .angioplasIy, srtorial diw&n wurred ntore frequently in c&b&d plaque wbetw arterial axpPn.Qioo occurred nun rreqwnuy In nonca,clRcd pkaques. 8uccESful angioplssty CalwS a cont,n~"m or *ria, resprmses that vary inpwkmtiy with plaque wnpwitton.

Research paper thumbnail of Arterial responses to balloon coronary angioplasty: An intravascular ultrasound study

Journal of the American College of Cardiology, 1992

The purpose of this study was to examine the cwonary artery repo"w to prcutanmws trmIslumtnal mmn... more The purpose of this study was to examine the cwonary artery repo"w to prcutanmws trmIslumtnal mmnrry angiopiasry by using intravascular ultrawuwJ. Eackzmmd. The immediate e&cts of comnw aneioplestv on belore and imp&d 1; I!? t 11% alter angiop&y. Calclum was visualized in 7 (24%) of the 29 aogioplasty sib by Euomscopy verse 15 (52%) of sites by intravawular ultraswad (p = 0.022). Arterial diwction aftpr angiopbasty wzs observed in 8 (27%) of c&se by contrast sngiograpky venus 24 (83%, by intrava,wu,s~ abrasound (p < 0.001). ,i,:-avascular ultrasaud detected exteo. slvedtswtion st tbeangloplarty site in II (73%) oftbe 15 c&lAPd plaques and in ollry 3 (21%) nf tke 14 nmwakified plsques (p = 0.024). Arterial expmwiom (d&ad 8s the area within Ike external elastic membrane at tke angknplrty site greater lban that of Ike pmximal reference q-t) occurred in 29% OrcsLibIed plaques compared wltb 86% ofnoocakttted plaque (p = 0.007). Conclusianr. Intravawulnr ultrawund is more sensitive tbnn angiograpby for idrntirying nrfprip, calcium and disarettm, at the site oi angioplasty. At the site of .angioplasIy, srtorial diw&n wurred ntore frequently in c&b&d plaque wbetw arterial axpPn.Qioo occurred nun rreqwnuy In nonca,clRcd pkaques. 8uccESful angioplssty CalwS a cont,n~"m or *ria, resprmses that vary inpwkmtiy with plaque wnpwitton.

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