A new thoracic CT dataset comprising 807 transverse contrast-enhanced CT images of the pulmonary artery bifurcation (Figure 1) was curated from the imaging records of 313 patients who had attended the Cardiology Clinic, Firat University Hospital from 01/01/2016 to 31/12/2022. The retrospective analysis of these images and the relevant clinical records had been approved by the hospital ethics committee. The patients were stratified into one control group without known PH and three groups of patients with progressively more severe PH as quantified by the mean pulmonary artery pressure (mPAP) measured on invasive right heart catheterization [34]: Group 1, 20 mmHg ≤ mPAP <25 mmHg; Group 2, 25 mmHg ≤mPAP ≤30 mmHg; and Group 3, mPAP >30 mmHg.
Table 1. Patient characteristics and number of CT images stratified by group in the study dataset.
Group Number of participants Age (years) Female: Male
Number of CT images
Control 114 42.7±6.1 68:46 210
Group 1 43 39.6±4.5 21:22
80
Group 2 65 41.3±5.3 39:26
130
Group 3 91 45.7±7.5 55:36
387
Total 313 42.3±5.9 183:130
807