An intravascular ultrasound appraisal of atherosclerotic plaque distribution in diseased coronary arteries

Nicholas Golinvaux, Akiko Maehara, Gary S. Mintz, Alexandra J. Lansky, John McPherson, Naim Farhat, Steven Marso, Bernard De Bruyne, Patrick W. Serruys, Barry Templin, Wai Fung Cheong, Rasha Aaskar, Martin Fahy, Roxana Mehran, Martin Leon, Gregg W. Stone

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Abstract

Background: The assumption that atherosclerosis accumulates in the proximal coronary arteries and that distal segments are spared has yet to be systematically shown in vivo. Methods: We used intravascular ultrasound to analyze complete proximal, mid, and distal segments from 75 diseased left anterior descending arteries (LADs) and 61 diseased right coronary arteries (RCAs) (including either the posterolateral [PLA; n = 38] or posterior descending artery [PDA; n = 23]) to document that distal coronary arteries are more often free of disease vs proximal vessels. External elastic membrane, lumen, and plaque and media areas were measured every 0.4 mm (median), and plaque burden (plaque and media/external elastic membrane) and percentage of normal (plaque and media thickness <0.3 mm) cross sections/segment were determined. Results: Left anterior descending artery plaque was heaviest in proximal and mid segments, diminishing significantly in distal segments; plaque burden was 46% ± 9% in proximal, 39% ± 8% in mid, and 31% ± 9% in distal LAD (P <.0001), with 93% (median) of distal LAD cross sections being normal compared with 21% of mid and 0% of proximal cross sections (P <.0001). Right coronary artery plaque gradient was less pronounced vs the LAD; plaque burden was 37% ± 13% in proximal, 40% ± 10% in mid, and 36% ± 10% in distal RCA, followed by 31% ± 11% in PDA and 33% ± 10% in PLA. This was supported by the median percentage of normal cross sections/segment: 0% proximal, 0% mid, and 23% distal RCA sections plus 100% PDA and 48% PLA sections. Conclusions: Intravascular ultrasound data indicated a proximal-to-distal LAD plaque gradient; significant disease was uncommon in the distal LAD. Conversely, the proximal-to-distal RCA plaque gradient was less distinct than the LAD, although disease in the PDA was still reduced compared with proximal segments.

Original languageEnglish (US)
Pages (from-to)624-631
Number of pages8
JournalAmerican Heart Journal
Volume163
Issue number4
DOIs
StatePublished - Apr 2012

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Atherosclerotic Plaques
Coronary Artery Disease
Coronary Vessels
Arteries
Membranes
Atherosclerosis

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Golinvaux, N., Maehara, A., Mintz, G. S., Lansky, A. J., McPherson, J., Farhat, N., ... Stone, G. W. (2012). An intravascular ultrasound appraisal of atherosclerotic plaque distribution in diseased coronary arteries. American Heart Journal, 163(4), 624-631. https://doi.org/10.1016/j.ahj.2011.07.031

An intravascular ultrasound appraisal of atherosclerotic plaque distribution in diseased coronary arteries. / Golinvaux, Nicholas; Maehara, Akiko; Mintz, Gary S.; Lansky, Alexandra J.; McPherson, John; Farhat, Naim; Marso, Steven; De Bruyne, Bernard; Serruys, Patrick W.; Templin, Barry; Cheong, Wai Fung; Aaskar, Rasha; Fahy, Martin; Mehran, Roxana; Leon, Martin; Stone, Gregg W.

In: American Heart Journal, Vol. 163, No. 4, 04.2012, p. 624-631.

Research output: Contribution to journalArticle

Golinvaux, N, Maehara, A, Mintz, GS, Lansky, AJ, McPherson, J, Farhat, N, Marso, S, De Bruyne, B, Serruys, PW, Templin, B, Cheong, WF, Aaskar, R, Fahy, M, Mehran, R, Leon, M & Stone, GW 2012, 'An intravascular ultrasound appraisal of atherosclerotic plaque distribution in diseased coronary arteries', American Heart Journal, vol. 163, no. 4, pp. 624-631. https://doi.org/10.1016/j.ahj.2011.07.031
Golinvaux, Nicholas ; Maehara, Akiko ; Mintz, Gary S. ; Lansky, Alexandra J. ; McPherson, John ; Farhat, Naim ; Marso, Steven ; De Bruyne, Bernard ; Serruys, Patrick W. ; Templin, Barry ; Cheong, Wai Fung ; Aaskar, Rasha ; Fahy, Martin ; Mehran, Roxana ; Leon, Martin ; Stone, Gregg W. / An intravascular ultrasound appraisal of atherosclerotic plaque distribution in diseased coronary arteries. In: American Heart Journal. 2012 ; Vol. 163, No. 4. pp. 624-631.
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AU - Golinvaux, Nicholas

AU - Maehara, Akiko

AU - Mintz, Gary S.

AU - Lansky, Alexandra J.

AU - McPherson, John

AU - Farhat, Naim

AU - Marso, Steven

AU - De Bruyne, Bernard

AU - Serruys, Patrick W.

AU - Templin, Barry

AU - Cheong, Wai Fung

AU - Aaskar, Rasha

AU - Fahy, Martin

AU - Mehran, Roxana

AU - Leon, Martin

AU - Stone, Gregg W.

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N2 - Background: The assumption that atherosclerosis accumulates in the proximal coronary arteries and that distal segments are spared has yet to be systematically shown in vivo. Methods: We used intravascular ultrasound to analyze complete proximal, mid, and distal segments from 75 diseased left anterior descending arteries (LADs) and 61 diseased right coronary arteries (RCAs) (including either the posterolateral [PLA; n = 38] or posterior descending artery [PDA; n = 23]) to document that distal coronary arteries are more often free of disease vs proximal vessels. External elastic membrane, lumen, and plaque and media areas were measured every 0.4 mm (median), and plaque burden (plaque and media/external elastic membrane) and percentage of normal (plaque and media thickness <0.3 mm) cross sections/segment were determined. Results: Left anterior descending artery plaque was heaviest in proximal and mid segments, diminishing significantly in distal segments; plaque burden was 46% ± 9% in proximal, 39% ± 8% in mid, and 31% ± 9% in distal LAD (P <.0001), with 93% (median) of distal LAD cross sections being normal compared with 21% of mid and 0% of proximal cross sections (P <.0001). Right coronary artery plaque gradient was less pronounced vs the LAD; plaque burden was 37% ± 13% in proximal, 40% ± 10% in mid, and 36% ± 10% in distal RCA, followed by 31% ± 11% in PDA and 33% ± 10% in PLA. This was supported by the median percentage of normal cross sections/segment: 0% proximal, 0% mid, and 23% distal RCA sections plus 100% PDA and 48% PLA sections. Conclusions: Intravascular ultrasound data indicated a proximal-to-distal LAD plaque gradient; significant disease was uncommon in the distal LAD. Conversely, the proximal-to-distal RCA plaque gradient was less distinct than the LAD, although disease in the PDA was still reduced compared with proximal segments.

AB - Background: The assumption that atherosclerosis accumulates in the proximal coronary arteries and that distal segments are spared has yet to be systematically shown in vivo. Methods: We used intravascular ultrasound to analyze complete proximal, mid, and distal segments from 75 diseased left anterior descending arteries (LADs) and 61 diseased right coronary arteries (RCAs) (including either the posterolateral [PLA; n = 38] or posterior descending artery [PDA; n = 23]) to document that distal coronary arteries are more often free of disease vs proximal vessels. External elastic membrane, lumen, and plaque and media areas were measured every 0.4 mm (median), and plaque burden (plaque and media/external elastic membrane) and percentage of normal (plaque and media thickness <0.3 mm) cross sections/segment were determined. Results: Left anterior descending artery plaque was heaviest in proximal and mid segments, diminishing significantly in distal segments; plaque burden was 46% ± 9% in proximal, 39% ± 8% in mid, and 31% ± 9% in distal LAD (P <.0001), with 93% (median) of distal LAD cross sections being normal compared with 21% of mid and 0% of proximal cross sections (P <.0001). Right coronary artery plaque gradient was less pronounced vs the LAD; plaque burden was 37% ± 13% in proximal, 40% ± 10% in mid, and 36% ± 10% in distal RCA, followed by 31% ± 11% in PDA and 33% ± 10% in PLA. This was supported by the median percentage of normal cross sections/segment: 0% proximal, 0% mid, and 23% distal RCA sections plus 100% PDA and 48% PLA sections. Conclusions: Intravascular ultrasound data indicated a proximal-to-distal LAD plaque gradient; significant disease was uncommon in the distal LAD. Conversely, the proximal-to-distal RCA plaque gradient was less distinct than the LAD, although disease in the PDA was still reduced compared with proximal segments.

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