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Lesion length assessment using a new vessel caliper
Author(s) -
Wolyn Robert,
Dixon Simon R.,
Almany Steven L.,
Korotko Joe,
Huang Raywin R.,
O'Neill William W.
Publication year - 2003
Publication title -
catheterization and cardiovascular interventions
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.988
H-Index - 116
eISSN - 1522-726X
pISSN - 1522-1946
DOI - 10.1002/ccd.10418
Subject(s) - calipers , medicine , lesion , surgery , radiology , mechanical engineering , engineering
Assessment of coronary lesion length using visual estimation or quantitative coronary angiography can be unreliable. We tested the accuracy of a new handheld caliper device to measure lesion length in a bench‐top model and in eight patients undergoing percutaneous coronary intervention (PCI). Caliper–derived length measurements were compared to the known reference distance in the bench‐top model and visual or intravascular ultrasound (IVUS)‐derived measurements in vivo. In the coronary model, caliper‐derived measurements were accurate and correlated well with known reference distances regardless of the angiographic projection. During PCI, there was a poor correlation between the best visual estimate of length and IVUS‐derived measurements. In contrast, caliper‐derived measurements correlated closely with IVUS‐derived measurements. This handheld caliper provides a simple and accurate method of assessing intracoronary lesion length and may be particularly useful during coronary stenting and when adjunctive brachytherapy is performed. Cathet Cardiovasc Intervent 2003;58:168–174. © 2003 Wiley‐Liss, Inc.