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May 15, 2020Journal of Thoracic ImagingOpen Access

The myocardial cut-off sign measured 1 cm from the aneurysm neck was 91% sensitive and 97% specific for identifying left ventricular pseudoaneurysms.

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Why the study?

The study was designed to describe the myocardial cut-off sign, evaluate its ability to distinguish left ventricular pseudoaneurysms from true aneurysms, and compare its performance with other imaging findings and quantitative measurements.

Does the myocardial cut-off sign on cardiac CT and MRI accurately distinguish left ventricular pseudoaneurysms from true aneurysms?

Comparison

LV PSAs vs LVAs

Design

Retrospective single-center study

Discussion

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Overview

May aid CT/MRI distinction of surgical LV PSA from true aneurysm; leaves open prospective validation before practice change.

Structured PICO

Does the myocardial cut-off sign on cardiac CT and MRI accurately distinguish left ventricular pseudoaneurysms from true aneurysms?

P
Population
35 patients with preoperative cardiac CT or MRI and surgically confirmed left ventricular true aneurysms (n=18) or pseudoaneurysms (n=17) over a 10-year period
I
Intervention
Myocardial cut-off sign on cardiac CT or MRI (objective >50% decrease in aneurysm sac wall thickness measured at 1 cm or 2 cm from the aneurysmal neck, or subjective abrupt cut-off)
O
Outcome
Diagnostic sensitivity and specificity for distinguishing left ventricular pseudoaneurysms from true aneurysmssurrogate

The myocardial cut-off sign on cardiac CT and MRI is a highly sensitive and specific objective marker for distinguishing left ventricular pseudoaneurysms from true aneurysms.

Cite This Study

A 2020 study studied this question.

synapsesocial.com/papers/6a7fa1afc1e9996ee9406bfbhttps://doi.org/10.1097/rti.0000000000000525
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