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Prognostic value of cardiac CT parameters in patients undergoing surgical correction for tricuspid regurgitation: a

Young Joo Suh1, Seung Hyun Lee2, Sak Lee2

  • 1Department of Radiology, Research Institute of Radiological Science, Center for Clinical Imaging Data Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.

Quantitative Imaging in Medicine and Surgery
|July 29, 2025
PubMed

Insights

Perioperative cardiac computed tomography (CT) parameters, specifically tricuspid annulus diameter (TAD) and right ventricular (RV) volumes, can predict long-term adverse outcomes after tricuspid valve (TV) surgery. These imaging metrics offer valuable prognostic information for patients undergoing TV repair or replacement.

Area of Science:

  • Cardiology
  • Radiology
  • Cardiac Surgery

Background:

  • The predictive value of perioperative cardiac computed tomography (CT) for long-term outcomes after tricuspid valve (TV) surgery is not well-established.
  • Investigating the prognostic significance of CT-derived tricuspid annular and right ventricular (RV) parameters is crucial for improving patient management.

Purpose of the Study:

  • To evaluate the prognostic value of perioperative cardiac CT-derived tricuspid annular and right ventricular (RV) parameters on long-term postoperative adverse outcomes following tricuspid valve (TV) surgery.

Main Methods:

  • Prospective enrollment of 66 patients undergoing corrective TV surgery for tricuspid regurgitation.
  • Preoperative and 6-month postoperative cardiac CT scans to analyze RV volume parameters and TV annulus diameter.
  • Assessment of adverse outcomes including mortality, readmission, residual regurgitation, and elevated RV systolic pressure.

Main Results:

  • Perioperative cardiac CT revealed significant RV volume changes post-surgery.
  • Preoperative tricuspid annulus diameter (TAD)/BSA, RV end-diastolic volume (RVEDV)/BSA, and RV stroke volume (RVSV)/BSA, along with postoperative RVEDV/BSA reduction, were associated with adverse outcomes.
  • Preoperative RVSV/BSA and RVEDV/BSA showed significant differences in survival outcomes at 1 and 2 years, respectively.

Conclusions:

  • Perioperative cardiac CT-derived TAD and RV volume parameters offer independent prognostic information.
  • These imaging metrics can aid in predicting long-term postoperative adverse outcomes in patients undergoing TV surgery.
Abstract

Keywords:
Tricuspid valve (TV)cardiac surgerymultidetector computed tomography (multidetector CT)right ventricle

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