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      Accuracy of Quantification of Coronary Arteriograms with Hand-Held Calipers

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          Abstract

          This study compares the use of hand-held calipers to automated quantitative coronary arteriography in assessing coronary artery stenosis severity. 48 stenoses in the visually estimated range of 30-90% were evaluated in two orthogonal projections. Absolute stenosis dimensions and calculated transstenotic pressure gradient (PG) were compared. Hand-held calipers were of limited value in assessing absolute stenosis dimensions (SD = 0.32 mm, r = 0.80). However, the correlation found in the assessment of percent diameter stenosis (SD = 7.7%, r = 0.83) and PG (SD = 1.3 mm Hg, r = 0.83) was acceptable. In particular, the allocation into hemodynamically significant (n = 30) and nonsignificant (n = 18) stenoses, according to the criterion of a PG > 30 mm Hg, was accomplished identically by both methods.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          0008-6312
          1421-9751
          1994
          1994
          18 November 2008
          : 85
          : 2
          : 94-100
          Affiliations
          Department of Medicine, Division of Cardiology, University Hospital (Rigshospitalet), Copenhagen, Denmark
          Article
          176655 Cardiology 1994;85:94–100
          10.1159/000176655
          7954569
          © 1994 S. Karger AG, Basel

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          Page count
          Pages: 7
          Categories
          Catheterization and Interventional Cardiology

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