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Prediction of the debulking effect of rotational atherectomy using optical frequency domain imaging: a prospective study.

Authors :
Hamana, Tomoyo
Kawamori, Hiroyuki
Toba, Takayoshi
Nishimori, Makoto
Tanimura, Kosuke
Kakizaki, Shunsuke
Nakamura, Koichi
Fujimoto, Daichi
Sasaki, Satoru
Osumi, Yuto
Fujii, Masayoshi
Iwane, Seigo
Yamamoto, Tetsuya
Naniwa, Shota
Sakamoto, Yuki
Fukuishi, Yuta
Matsuhama, Koshi
Hirata, Ken-ichi
Otake, Hiromasa
Source :
Cardiovascular Intervention & Therapeutics; Jul2023, Vol. 38 Issue 3, p316-326, 11p
Publication Year :
2023

Abstract

This study determined the predictive accuracy of optical frequency domain imaging (OFDI) on debulking effects of rotational atherectomy (RA) and compared the predictive accuracy of OFDI catheter-based with Rota wire-based prediction methods. This prospective, single-center, observational study included 55 consecutive patients who underwent OFDI-guided RA. On pre-RA OFDI images, a circle, identical to the Rota burr was drawn at the center of the OFDI catheter (OFDI catheter-based prediction method) or wire (wire-based prediction method). The area overlapping the vessel wall was defined as the predicted ablation area (P-area). The actual ablated area (A-area) was measured by superimposing the OFDI images before and after RA. The overlapping P-area and A-area were defined as overlapped ablation area (O-area), and the predictive accuracy was evaluated by %Correct area (O-area/P-area) and %Error area (A-area − O-area/A-area). The median %Correct and %Error areas were 47.8% and 41.6%, respectively. Irrelevant ablation (low %Correct-/high % Error areas) and over ablation (high %Correct-/high % Error areas) were related to deep vessel injury and intimal flap outside the P-area. The predictive accuracy was better in the OFDI catheter-based prediction method than the wire-based prediction method in the cross sections where the OFDI catheter and wire came in contact. However, it was better in the latter than the former where the OFDI catheter and wire were not in contact. OFDI-based simulation of the RA effect is feasible though accuracy may be affected by the OFDI catheter and wire position. OFDI-based simulation of RA effect might reduce peri-procedural complications during RA. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
18684300
Volume :
38
Issue :
3
Database :
Complementary Index
Journal :
Cardiovascular Intervention & Therapeutics
Publication Type :
Academic Journal
Accession number :
164150981
Full Text :
https://doi.org/10.1007/s12928-023-00928-9