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"Direct MPR": A Useful Tool for Oblique CT Fluoroscopy-Assisted Puncture
Rui Sato1, Takeshi Aramaki2, Kiichiro Yoza2
1Division of Interventional Radiology, Shizuoka Cancer Center, 1007 Shimonagakubo Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan. louis2vuitton@hotmail.co.jp.
Cardiovascular and Interventional Radiology
|April 26, 2017
Summary
Direct MPR imaging allows for faster, real-time CT-guided oblique punctures. This new technique improves safety and ease for accessing difficult-to-reach targets, particularly below the diaphragm.
Area of Science:
- Medical Imaging
- Interventional Radiology
- Surgical Planning
Background:
- Conventional multiplanar reconstruction (MPR) is time-consuming, limiting its use in real-time CT fluoroscopy-assisted procedures.
- Oblique puncture planning requires efficient imaging solutions for complex anatomical targets.
Purpose of the Study:
- To introduce and evaluate a novel, rapid MPR technique, termed "direct MPR," for real-time CT-guided oblique punctures.
- To assess the feasibility and effectiveness of direct MPR in clinical practice.
Main Methods:
- A retrospective review of 14 cases utilizing direct MPR for CT-guided oblique punctures between February and June 2016.
- Procedures included radiofrequency ablation (RFA) for hepatocellular carcinoma (HCC), biopsies, and percutaneous abscess drainage, often targeting regions below the diaphragm.
Main Results:
- Direct MPR enabled successful completion of all 14 procedures.
- The technique was particularly effective for RFA of HCC and abscess drainage in challenging locations immediately below the diaphragm.
- Average lesion length in RFA cases was 15.4 mm; average craniocaudal angle was 32.5°.
Conclusions:
- Direct MPR significantly enhances the ease and safety of CT-guided oblique punctures.
- This rapid MPR technology is ideal for targeting difficult-to-access lesions, especially those situated below the diaphragm.
