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Related Experiment Video

Updated: Jun 3, 2026

Robotic-assisted Bronchoscopy Combined with Multimodal Imaging for Targeted Lung Cryobiopsies

Robotic-assisted Bronchoscopy Combined with Multimodal Imaging for Targeted Lung Cryobiopsies

Published on: July 19, 2024

Ultra-low-dose protocol for CT-guided lung biopsies.

Jason C Smith¹, Daniel H Jin, Greg E Watkins

¹Department of Radiology, Loma Linda University Medical Center, 11234 Anderson St., 2605 G Schuman Pavilion, Loma Linda, CA 92354, USA. jcsmith@llu.edu

Journal of Vascular and Interventional Radiology : JVIR

|April 6, 2011

Summary

Ultra-low-dose computed tomography (CT) protocols significantly reduce radiation exposure during lung biopsies. This study demonstrates that ultra-low-dose CT lung biopsies maintain high technical success and patient safety.

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Area of Science:

Radiology
Medical Imaging
Interventional Pulmonology

Background:

Computed tomography (CT) scans deliver significant radiation doses to patients.
Lung biopsies are a common procedure where radiation exposure is a concern.

Purpose of the Study:

To evaluate if an ultra-low-dose (ULD) CT protocol can reduce radiation dose during lung biopsies without compromising technical success or complication rates.
Hypothesized that radically lowering CT dose would not significantly alter outcomes.

Main Methods:

100 patients undergoing lung biopsies were evaluated.
Radiation dose was reduced from standard to ULD (100 kV, 7.5 mAs) protocol.
Compared radiation dose, image quality, technical success, and complications between standard and ULD groups.

Related Experiment Videos

Last Updated: Jun 3, 2026

Robotic-assisted Bronchoscopy Combined with Multimodal Imaging for Targeted Lung Cryobiopsies

Robotic-assisted Bronchoscopy Combined with Multimodal Imaging for Targeted Lung Cryobiopsies

Published on: July 19, 2024

Main Results:

Average radiation dose decreased by over 95% (677.5 to 18.3 mGy·cm) with ULD CT (P < .0001).
96% of ULD studies had adequate or better image quality.
No significant difference in pneumothorax rates (10% ULD vs. 6% standard) or technical success (92% ULD vs. 98% standard).

Conclusions:

ULD CT protocols achieve >95% radiation dose reduction for CT-guided percutaneous lung biopsies.
This reduction is achieved without compromising technical success or patient safety compared to standard protocols.