Cardiovascular magnetic resonance imaging using photo plethysmography

Abstract

Disclosed herein is a medical system (100, 300) comprising a memory (110) storing machine executable instructions (120) and a computational system (104). Execution of the machine executable instructions causes the computational system to: receive (202) photo plethysmograph data (128); receive (200) cardiovascular k-space data (122) acquired according to a cardiovascular magnetic resonance imaging protocol and descriptive of a cardiovascular region (326) of a subject (318), such that the cardiovascular k-space data comprises multiple k-space data portions (126) acquired using prospective synchronization with the photo plethysmograph data; ascertain (204) a cardiac phase (130) using the photo plethysmograph data; map (206) the multiple k-space data portions to a predetermined number of cardiac phases using the ascertained cardiac phase; and construct (208) a cardiovascular image (134) for each of the predetermined number of cardiac phases using the mapped multiple k-space data portions using retrospective synchronization of the photo plethysmograph data with the multiple k-space data portions.

Dependencies are inferred from the claim text.