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Related Experiment Video

Updated: Jun 24, 2026

Cone Beam Intraoperative Computed Tomography-based Image Guidance for Minimally Invasive Transforaminal Interbody Fusion

Cone Beam Intraoperative Computed Tomography-based Image Guidance for Minimally Invasive Transforaminal Interbody Fusion

Published on: August 6, 2019

Does preoperative computed tomography reduce the risks associated with re-do cardiac surgery?

Nouman U Khan¹, Nizar Yonan

¹Department of Cardiothoracic Surgery, University Hospital of South Manchester NHS Foundation Trust, Southmoor Road, Manchester, M23 9LT, UK. n_u_khan@hotmail.com

Interactive Cardiovascular and Thoracic Surgery

|April 3, 2009

Summary

Preoperative computed tomography (CT) angiography significantly improves risk assessment for re-do cardiac surgery. This advanced imaging technique helps identify high-risk factors, enabling tailored surgical strategies and reducing operative risks for patients.

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Area of Science:

Cardiovascular Surgery
Medical Imaging
Diagnostic Technologies

Background:

Re-do cardiac surgery carries inherent risks, often increased by adhesions and atherosclerosis.
Accurate preoperative assessment is crucial for mitigating complications in repeat cardiac procedures.

Purpose of the Study:

To evaluate the efficacy of preoperative computed tomography (CT) angiography in reducing risks associated with re-do cardiac surgery.
To determine if advanced imaging can improve risk stratification and surgical planning for repeat cardiac operations.

Main Methods:

Systematic literature review of Medline database, identifying seven relevant studies from 412 initial papers.
Analysis of preoperative computed tomography (CT) angiography findings, including ECG-gated multi-detector scans.

Main Results:

CT angiography provides detailed anatomical information of the heart, aorta, and previous grafts.
High-risk findings on CT scans led to surgery cancellation in up to 13% of cases.
Preventive surgical strategies, informed by CT scans, were employed in over two-thirds of patients, significantly reducing operative risk.
Intra-operative injuries were less frequent in patients who underwent preoperative CT scans.

Conclusions:

Preoperative ECG-gated multi-slice CT angiography is essential for optimal planning of re-do cardiac surgery.
CT imaging allows for better risk stratification and modification of surgical strategies, thereby reducing potential risks.
The use of CT scans facilitates the implementation of preventive measures, leading to improved patient outcomes.