What question did this study set out to answer?

This research aims to examine the accuracy of visual interpretations of coronary arteriograms compared to quantitative assessments.

May 14, 2026Journal of the American College of Cardiology

Patterns in visual interpretation of coronary arteriograms as detected by quantitative coronary arteriography

Q: What are the key findings of this study?

Visual interpretation of coronary arteriograms agreed with quantitative assessment on severe disease in only 62% of cases, significantly overestimating three-vessel disease (p<0.05).

Q: What is the clinical evidence from this study?

Study design: Observational. Population: Coronary artery stenosis (n=241). Intervention: Visual interpretation of coronary arteriograms vs. Quantitative coronary arteriography. Primary outcome: Agreement on the presence of severe disease (p=<0.05).

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Key result

Visual coronary arteriogram interpretation matches quantitative analysis in only ~62% of severe disease cases.

P<0.05
n=241

Why the study?

Does visual interpretation of coronary arteriograms accurately assess stenosis severity compared to quantitative coronary arteriography?

Key Points

This research aims to examine the accuracy of visual interpretations of coronary arteriograms compared to quantitative assessments.
Part 1: 14 novice readers and 6 experienced cardiologists interpreted phantom images of known stenosis severity.
Part 2: 212 stenoses on 241 arteriograms were visually analyzed and compared against quantitative assessments.
Part 3: Comparison of visual estimates and quantitative assessments of stenosis before and after balloon angioplasty of 38 stenoses.
Visual estimates of 'moderately' severe stenosis were 30% higher than actual diameter stenosis.
Only 62% agreement on severe disease between visual and quantitative methods, with visual diagnosing more three-vessel disease.
Visual interpretation significantly overestimated initial lesion severity (p < 0.001) and underestimated post-angioplasty stenosis severity.

Study Design

Type

Observational (n=241)

Structured PICO

Does visual interpretation of coronary arteriograms accurately assess stenosis severity compared to quantitative coronary arteriography?

Population

A three-part study comparing visual interpretation of coronary arteriograms with quantitative coronary arteriography across 241 arteriograms and phantom images.

Exposure

Visual interpretation of coronary arteriograms

Comparator

Quantitative coronary arteriography (QCA)

Outcome

Percent diameter stenosissurrogate

Main Result

p-value: p=<0.05

Discussion

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Implication

Visual interpretation of coronary arteriograms systematically overestimates severe stenoses and underestimates mild stenoses compared to quantitative assessment.

Cite This Study

Fleming et al. (1991) conducted an observational in Coronary artery stenosis (n=241). Visual interpretation of coronary arteriograms vs. Quantitative coronary arteriography was evaluated on Agreement on the presence of severe disease (p=<0.05). Visual interpretation of coronary arteriograms agreed with quantitative assessment on severe disease in only 62% of cases, significantly overestimating three-vessel disease (p<0.05).

synapsesocial.com/papers/6a05937f4cfb5beb2ffb8e9d https://doi.org/10.1016/0735-1097(91)90752-u

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Implication

Visual interpretation of coronary arteriograms systematically overestimates severe stenoses and underestimates mild stenoses compared to quantitative assessment.

Patterns in visual interpretation of coronary arteriograms as detected by quantitative coronary arteriography

Key Points

Study Design

Structured PICO

Main Result

Discussion

Implication

Cite This Study

Patterns in visual interpretation of coronary arteriograms as detected by quantitative coronary arteriography

Key Points

Study Design

Structured PICO

Main Result

Discussion

Implication

Cite This Study

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