While your heart pumps blood to the rest of your body, a network of arteries known as coronary arteries brings blood to your heart muscle. If these get too narrow, it can be hard for your heart to get ...

Patients with an intermediate 50% to 70% stenosed coronary lesion found on CT angiography (CTA); CT perfusion may be able to determine whether the lesion needs to be treated. Patients about to undergo ...

To detect in-stent restenosis among patients with coronary stents, a new study shows the potential for improved diagnostic accuracy by adding computed tomography perfusion imaging to coronary CT ...

How Does a VQ Scan Work? The VQ scan is a nuclear scan. It measures airflow, called ventilation, and blood flow, called perfusion, in your lungs. The V and Q make up a math equation that helps doctors ...

Background: Cardiac syndrome X is defined by a typical angina pectoris with normal or near normal (stenosis <40%) coronary angiogram with or without electrocardiogram (ECG) change or atypical angina ...

In December 2025, 4DMedical announced a significant expansion of its distribution agreement with Koninklijke Philips for CT:VQTM, the company’s FDA-cleared, non-contrast CT ventilation and perfusion ...

Learn more about eLife assessments Blood flow to the brain is a sensitive marker of neuronal activity as well as of a number of diseases, including stroke, tumours and neurodegenerative conditions.

DOHA: Hamad Medical Corporation’s (HMC) Heart Hospital has reduced the waiting time for myocardial perfusion scan. With a mean average waiting time of 19.5 days, HMC is well within the international ...

Aidoc, the leading clinical AI platform, today announced strategic partnerships with Cercare Medical and Circle CVI to expand ...