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Updated: Jul 15, 2025

Simultaneous PET/MRI Imaging During Mouse Cerebral Hypoxia-ischemia

Simultaneous PET/MRI Imaging During Mouse Cerebral Hypoxia-ischemia

Published on: September 20, 2015

Functional imaging after the "ISCHEMIA" trial.

Suzanne Duhamel¹, Théo Pezel², Jérôme Garot¹

¹Cardiovascular Magnetic Resonance Laboratory, institut cardiovasculaire Paris Sud, hôpital privé Jacques-Cartier, Ramsay santé, 6, avenue du Noyer-Lambert, 91300 Massy, France.

Archives of Cardiovascular Diseases

|September 24, 2023

Summary

This summary is machine-generated.

Revascularization offers no additional benefit over optimal medical therapy for stable ischemic heart disease patients with moderate-severe ischemia. This review summarizes the ISCHEMIA trial, its limitations, and potential misinterpretations for clinicians.

Keywords:

Chronic coronary syndrome Coronary computed tomography angiography Functional imaging test ISCHEMIA trial Myocardial ischaemia

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Area of Science:

Cardiology
Clinical Trials
Medical Imaging

Background:

Previous trials like COURAGE and BARI 2D indicated no added benefit of revascularization for stable ischemic heart disease (SIHD) patients.
The ISCHEMIA trial investigated revascularization versus optimal medical therapy in SIHD patients with moderate-to-severe ischemia.

Purpose of the Study:

To summarize the findings of the ISCHEMIA trial.
To highlight the limitations of the ISCHEMIA trial.
To caution healthcare providers against misinterpreting the trial's implications.

Main Methods:

Randomized clinical trial comparing revascularization plus optimal medical therapy (OMT) versus OMT alone.
Inclusion criteria: SIHD patients with moderate-severe ischemia on functional testing and significant coronary stenosis.
Functional testing included imaging or stress electrocardiogram; stenosis assessed by coronary angiography.

Main Results:

The ISCHEMIA trial demonstrated no significant difference in outcomes between the revascularization and OMT groups.
Both strategies yielded similar rates of major adverse cardiovascular events.
This finding applies to patients with moderate-severe ischemia and significant coronary artery disease.

Conclusions:

The ISCHEMIA trial provides crucial data for managing stable ischemic heart disease patients.
The study has sparked debate regarding the role of functional imaging in diagnosis and treatment decisions.
Careful interpretation is necessary to avoid misapplication of the results in clinical practice.