Keywords: Lung, Lung, Lung MRI, UTE, Pulmonary nodule
Motivation: MSCT, used to examine lung nodules, poses ionizing radiation risks, hindering long-term follow-up; thus, MRI and ultra-short echo time (UTE) are preferable.
Goal(s): We compared UTE with MSCT to provide a non-radiative lung nodule examination protocol.
Approach: Two radiologists interpreted the UTE images; another radiologist matched them one-to-one with the MSCT results.
Results: UTE's sensitivity was 88% for detecting solid nodules ≥4 mm and 100% for subsolid nodules ≥8 mm. MSCT and UTE measured similar average nodule diameters. Lung-RADS v2022 classifications were consistent between both methods. UTE may be a radiation-free alternative for examining lung nodules.
Impact: UTE, an emerging non-radiative examination protocol, demonstrates great potential in detecting, diagnosing, and providing short-term follow-up of lung nodules and is poised to become an important tool for early screening and diagnosis of lung cancer.
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