Radiomics Model for the Diagnosis of Pneumocystis Jirovecii Pneumonia in Non-HIV Patients

To evaluate the performance of radiomics in differentiating Pneumocystis jirovecii pneumonia (PCP) from other types of pneumonia and to improve the diagnostic efficacy of non-invasive tests in non-HIV patients.

Inclusion Criteria:aged over eighteen years;presence of an underlying disease known to be associated with PCPsymptoms of lower respiratory tract infection, such as fever, cough or dyspneasigns of lung infection on high resolution CT at the on-set of the diseasereceived BAL examination within three days after CT scansunderwent qPCR and IF staining tests on the BAL fluid sample.Exclusion Criteria:with HIV infectiontaking trimethoprim-sulfamethoxazole for prophylaxisundiagnosed by qPCR and IF staining tests