Abstract
Objective. The aim of this study is to perform a comparative assessment of pulmonary arterial index and McGoon ratio in patients with a single ventricle (SV) prior to the Fontan operation, calculated based on data from multislice computed tomography angiography (MSCT-A) and cardiac angiography (CA).
Material and methods. The study included 63 patients aged 3 to 30 years, Me 7 [6; 10], with various functional variants of SV who underwent the Fontan operation from November 2010 to September 2020. All patients in the preoperative period underwent MSCT-A and CA with the calculation of the Nakata index and McGoon ratio. A comparative analysis of the Nakata index and McGoon ratio values was performed in pairs: 1) MSCT-A (Nakata) and CA (Nakata); 2) MSCT-A (McGoon min) and CA (McGoon); 3) MSCT-A (McGoon max) and CA (McGoon).
Results. The comparative analysis showed that the Nakata index values measured by MSCT-A and CA did not differ significantly (p = 0.7). The median values of the Nakata index in MSCT-A and CA were 276 [207; 345] and 293 [218; 367] respectively. When comparing the McGoon ratio values in the MSCT-A (McGoon max) and CA (McGoon) pair, no significant differences were identified (p = 0.1). When comparing the McGoon ratio values in the MSCT-A (McGoon min) and CA (McGoon) pair, a significant discrepancy in values was found (p < 0.05). The median values of McGoon max, McGoon min, and McGoon ratio in MSCT-A and CA were 2.4 [2.0; 3.1], 2.2 [1.7; 2.7] and
2.5 [1.8; 3.0] respectively.
Conclusion. MSCT-A and CA are interchangeable methods in assessing morphometric parameters of pulmonary artery branches in SV patients prior to the Fontan operation. When analyzing the morphology of the pulmonary arteries using MSCT-A, it is advisable to consider both McGoon ratio values (minimum and maximum).
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About the authors
- Laysan R. Khabibullina, Radiologist; ORCID
- Svetlana A. Aleksandrova, Cand. Med. Sci., Senior Researcher, Head of X-ray Department No. 2; ORCID
- Diana M. Pursanova, Dr. Med. Sci., Senior Researcher; ORCID
- Aleksey V. Dorofeev, Cand. Med. Sci., Head of the Radiation Diagnostics Center; ORCID
- Inna E. Rychina, Cand. Med. Sci., Senior Researcher, Head of X-ray Department No. 1; ORCID
- Sergey S. Volkov, Cand. Med. Sci., Leading Researcher, Deputy Head, Head of the International Medical Center; ORCID
- Dmitriy V. Kovalev, Dr. Med. Sci., Leading Researcher, Head of the Department of Pediatric Surgery with Congenital Heart Disease; ORCID
- Ovsepyan Vache Ovsepovich, Physician in X-ray Endovascular Diagnostics and Treatment; ORCID
