PMID- 35800352 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220716 IS - 2223-3652 (Print) IS - 2223-3660 (Electronic) IS - 2223-3652 (Linking) VI - 12 IP - 3 DP - 2022 Jun TI - Dual energy CT based scoring in chronic thromboembolic pulmonary hypertension and correlation with clinical and hemodynamic parameters: a retrospective cross-sectional study. PG - 305-313 LID - 10.21037/cdt-21-686 [doi] AB - BACKGROUND: We used a dual energy computed tomography (DECT) based scoring system in patients with chronic thromboembolic pulmonary hypertension (CTEPH) and correlated it with functional and hemodynamic parameters. METHODS: This was a retrospective study on 78 patients with CTEPH who underwent DECT. First, clot burden score was calculated by assigning a following score: pulmonary trunk-5, each main pulmonary artery-4, each lobar-3, each segmental-2, and subsegmental-1 per lobe; sum total was then calculated. Perfusion defect (PD) score was calculated by assigning 1 point to each segmental PD. Combined score was calculated by adding the clot burden and PD score. All three scores were correlated with clinical and hemodynamic parameters that included New York Heart Association (NYHA) functional class, 6-minute walk distance (6MWT) in feet, forced expiratory volume in one second (FEV1), forced vital capacity (FVC), diffusing capacity of the lung for carbon monoxide (DLCO), pulmonary arterial pressure (PAP) [systolic PAP (sPAP), diastolic PAP (dPAP) and mean PAP (mPAP)], pulmonary vascular resistance (PVR), right atrial pressure, cardiac output, and cardiac index. RESULTS: Clot burden score, PD score, and combined score all positively correlated with sPAP (0.25, 0.34, 0.34), PVR (0.27, 0.30, 0.34), and mPAP (0.28, 0.31, 0.36). There was no statistically significant correlation of clot burden score, PD score and combined score with 6MWT, % predicted 6MWT, FEV1, FEV1%, FVC, FVC%, DLCO% and NYHA functional class. CONCLUSIONS: DECT based scoring in CTEPH is feasible and correlates positively with sPAP, mPAP and PVR. Combined score has the highest magnitude of correlation. CI - 2022 Cardiovascular Diagnosis and Therapy. All rights reserved. FAU - Abozeed, Mostafa AU - Abozeed M AD - Sections of Thoracic and Cardiovascular Imaging Laboratory, Imaging Institute, Cleveland Clinic, OH, USA. FAU - Conic, Sofija AU - Conic S AD - Sections of Thoracic and Cardiovascular Imaging Laboratory, Imaging Institute, Cleveland Clinic, OH, USA. FAU - Bullen, Jennifer AU - Bullen J AD - Quantitative Health Sciences, Cleveland Clinic, OH, USA. FAU - Rizk, Alain AU - Rizk A AD - Sections of Thoracic and Cardiovascular Imaging Laboratory, Imaging Institute, Cleveland Clinic, OH, USA. FAU - Saeedan, Mnahi Bin AU - Saeedan MB AD - Sections of Thoracic and Cardiovascular Imaging Laboratory, Imaging Institute, Cleveland Clinic, OH, USA. FAU - Karim, Wadih AU - Karim W AD - Sections of Thoracic and Cardiovascular Imaging Laboratory, Imaging Institute, Cleveland Clinic, OH, USA. FAU - Heresi, Gustavo A AU - Heresi GA AD - Department of Pulmonary and Critical Care Medicine, Respiratory Institute, Cleveland Clinic, OH, USA. FAU - Renapurkar, Rahul D AU - Renapurkar RD AD - Sections of Thoracic and Cardiovascular Imaging Laboratory, Imaging Institute, Cleveland Clinic, OH, USA. LA - eng PT - Journal Article PL - China TA - Cardiovasc Diagn Ther JT - Cardiovascular diagnosis and therapy JID - 101601613 PMC - PMC9253168 OTO - NOTNLM OT - Pulmonary embolism (PE) OT - multidetector computed tomography OT - pulmonary hypertension (PH) COIS- Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://cdt.amegroups.com/article/view/10.21037/cdt-21-686/coif). The authors have no conflicts of interest to declare. EDAT- 2022/07/09 06:00 MHDA- 2022/07/09 06:01 PMCR- 2022/06/01 CRDT- 2022/07/08 02:49 PHST- 2021/10/27 00:00 [received] PHST- 2022/04/02 00:00 [accepted] PHST- 2022/07/08 02:49 [entrez] PHST- 2022/07/09 06:00 [pubmed] PHST- 2022/07/09 06:01 [medline] PHST- 2022/06/01 00:00 [pmc-release] AID - cdt-12-03-305 [pii] AID - 10.21037/cdt-21-686 [doi] PST - ppublish SO - Cardiovasc Diagn Ther. 2022 Jun;12(3):305-313. doi: 10.21037/cdt-21-686.