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Computer-guided pericardiocentesis: experimental results and clinical perspectives
O Chavanon1, L Carrat, C Pasqualini
1Department of Cardiac Surgery, Grenoble University Hospital, Grenoble, France. olivier.chavanon@wanadoo.fr
Herz
|February 24, 2001
Summary
Computer-assisted pericardiocentesis improves effusion drainage accuracy. This novel technique guides needles precisely, enhancing safety and effectiveness for challenging pericardial effusion cases.
Area of Science:
- Medical Devices
- Surgical Technology
- Cardiology
Background:
- Percutaneous pericardial puncture is established for large pericardial effusions.
- Smaller or loculated effusions present challenges for current techniques.
- Accurate guidance is crucial for improving procedural success.
Purpose of the Study:
- To present preclinical results of a computer-assisted pericardiocentesis technique.
- To evaluate the accuracy and feasibility of computer-guided needle placement for pericardial access.
- To explore potential for improved treatment of smaller and loculated pericardial effusions.
Main Methods:
- Acquisition of ultrasound data with a 3-D localizer and computer.
- Creation of a digital model to plan the optimal puncture strategy.
- Use of a passive guidance system for localized needle insertion to a predefined target.
- Validation on dynamic phantom, feasibility studies in dogs, and accuracy analysis in pigs.
Main Results:
- Demonstrated feasibility of computer-assisted pericardiocentesis in animal models.
- Achieved an accuracy of at least 2.5 mm in pigs with experimental pericardial effusion.
- Preclinical results support the potential for improved precision in reaching the pericardial cavity.
Conclusions:
- Computer-assisted pericardiocentesis is a feasible technique for pericardial access.
- This approach offers potential for enhanced accuracy, particularly in complex effusion cases.
- The technology may serve as a new tool for image-guided percutaneous access in soft tissues.