Abstract #4757

Assessing Pulmonary Function: A Comparative Study at 0.55T and 1.5T

Rui Wang¹, Qifan Ma¹, Mengxiao Liu², Yang Song³, Robert Grimm⁴, Voskrebenzev Andreas⁵, Vogel-Claussen Jens⁵, Ying Yuan¹, and Xiaofeng Tao¹

¹Department of Radiology, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine., Shang hai, China, ²MR scientific Marketing,Diagnostic Imaging, Siemens Healthineers Ltd, Shanghai, China, Shang hai, China, ³MR Research Collaboration Team, Siemens Healthineers Ltd. Shanghai, China., Shang hai, China, ⁴MR Application PredevelopmentResearch Collaboration CLS BODY, Siemens Healthineers AG, Erlangen, Germany, Erlangen, Germany, ⁵Institute for Diagnostic and Interventional Radiology, Hannover Medical School, OE 8220, Carl-Neuberg-Str.1, 30625 Hannover, Germany., Hannover, Germany

Synopsis

Keywords: Lung, Lung, PREFUL MRI

Motivation: The motivation for this study is to develop a non-invasive imaging technique for assessing pulmonary function without the need for ionizing radiation or potentially harmful contrast agents.

Goal(s): To evaluate the impact of different magnetic field strengths (0.55T and 1.5T) on functional parameters derived from the PREFUL MRI technique.

Approach: The study analyzed the data with MRLung software and conducting statistical comparisons to assess the differences in functional parameters, SNR, and CNR between the two field strengths.

Results: VDP, mean perfusion, and mean ventilation exhibited significant changes at the lower field strength, with higher SNR at 0.55T compared to 1.5T.

Impact: We demonstrate the potential of using a lower field strength (0.55T) MRI system for assessing pulmonary function, offering insights into the impact of field strength on functional parameters and quality, which may have implications for improving non-invasive pulmonary imaging methods.

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