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Radiation dose and quickness of needle CT-interventions using a laser navigation system (LNS) compared with
T Gruber-Rouh1, B Schulz1, K Eichler1
1Institute for Diagnostic and Interventional Radiology, Johann Wolfgang Goethe-University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.
European Journal of Radiology
|July 27, 2015
Summary
A new Laser Navigation System (LNS) significantly reduces radiation dose and procedure time for CT-guided interventions compared to conventional methods. This innovative approach enhances efficiency and patient safety in needle interventions.
Area of Science:
- Medical Imaging and Interventional Radiology
- Surgical Navigation Technologies
Background:
- CT-guided needle interventions are crucial for diagnosis and treatment.
- Minimizing radiation exposure and procedure time are key goals in interventional radiology.
- Conventional methods rely on skin markings, which can introduce inaccuracies.
Purpose of the Study:
- To compare the radiation dose and intervention speed of a Laser Navigation System (LNS) against conventional methods for CT-guided needle interventions.
Main Methods:
- A prospective, randomized comparative study involved 58 patients undergoing thoracic or abdominal interventions.
- Patients were assigned to either the LNS group (n=29) or the conventional method group (n=29).
- Radiation dose (DLP) and procedure time were meticulously analyzed and compared using the Mann-Whitney-U-test.
Main Results:
- The LNS group demonstrated a significantly shorter mean intervention time (20:25 min) compared to the control group (28:00 min).
- The mean dose-length-product (DLP) was lower in the LNS group (42.3 mGy cm) than in the control group (59.7 mGy cm).
- Mean target access path length was comparable between both groups (6.0 cm).
Conclusions:
- The Laser Navigation System (LNS) offers a more efficient and safer alternative for CT-guided interventions.
- LNS facilitates faster procedure times and reduces radiation exposure for patients.
- This technology represents a significant advancement in interventional radiology techniques.
