Black-Blood Lung MRI - Correlations of High-resolution MRI and Ultra-high-resolution CT Images

Black-Blood Lung MRI - Correlations of High-resolution MRI and Ultra-high-resolution CT Images

H Moriya, MD, Fukushima, Fukushima JAPAN; T Saito; Y Takahashi; S Muramatsu, RT; K Hashimoto; Y Kumasaka; Masahiro Suzuki, Motoharu Hokozaki, Philips NV: Masatoshi Honda, Canon Medical Systems Corporation: Shinsuke Tsukagoshi.

TEACHING POINTS 

The clinical indications of MRI for lung cancer are limited due to the low proton density and fast signal decay of the lung parenchyma itself. However, pathological changes resulting in an increase of tissue are easily depicted. In addition, vessel and calcification do not interfere with lung field interpretation. This effect can be enhanced by suppressing the blood flow signal with black-blood sequence technique. Therefore, the purpose of this presentation is to show the current MRI image of lung parenchyma.

TABLE OF CONTENTS/OUTLINE

1. Equipment: Ingenia CX 3.0T(Philips Japan), UHRCT (Aquilion Precision, Canon Medical Systems, 0.25mm thickness, 1024x1024). 2. Sequence parameter: T2W TSE MV RT. 3. Evaluation of lung MRI: T2WI can depict lung lesions in the same shape as CT. T1WI and DWI can draw solid component. Improved visibility of lung lesions. Improved lesion detection. Clarification of interstitial changes Vessel and calcification do not interfere with lung field interpretation. Characteristic signals and associations with surrounding structures may provide diagnostic evidence. Differentiation between blood vessels and bronchial mucus plugs. Confirmation of blood vessels in the lesion. Blood vessel wall information on the lungs. 4. Case presentation.