Patient-Adaptive Magnetic Resonance Oximetry: Comparison With Invasive Catheter Measurement of Blood Oxygen Saturation in Patients With Cardiovascular Disease.

ABSTRACT:

Background

The current standard method to measure intracardiac oxygen (O₂ ) saturation is by invasive catheterization. Accurate noninvasive blood O₂ saturation by MRI could potentially reduce the duration and risk of invasive diagnostic procedures.

Purpose

To noninvasively determine blood oxygen saturation in the heart with MRI and compare the accuracy with catheter measurements.

Study type

Prospective.

Subjects

Thirty-two patients referred for right heart catheterization (RHC) and five healthy subjects.

Field strength/sequence

T2-prepared single-shot balanced steady-state free-precession at 1.5T.

Assessment

MR signals in venous and arterial blood, hematocrit, and arterial O₂ saturation from a pulse oximeter were j

SUBMITTER: Varghese J 

PROVIDER: S-EPMC8822479 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature