心臓MRIにおける画像診断の今
愛媛大学大学院医学系研究科放射線医学 城戸倫之、望月輝一
心臓MRIは心疾患を多角的に評価できる有用な検査である。遅延造影MRIやcine MRIは心筋性状や機能評価
の重要な役割を担っているが、いくつかの問題点もある。本稿ではこれらの解決に有用と思われるT1 mappingと
Compressed sensingの概要とその臨床利用について概説する。
Cardiac Magnetic Resonance (CMR) can evaluate cardiac diseases and phathophysiology from
various directions and aspects. Late Gadolinium Enhancement (LGE) MRI is the standard reference as
non-invasive imaging in evaluating myocardial scar and fibrosis. Cine MRI is also recognized as the
standard reference for assessment of left ventricular function. However, there are still some problems
with these assessment techniques. These days the latest techniques such as T1 mapping and
compressed sensing are applied to CMR and they will be useful to overcome the existing problems. In
this manuscript, outline of the clinical use of T1 mapping and compressed sensing is explained.