Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

New brush-needle for percutaneous biopsy.

S Kadir1, W Johnston, M Warner

  • 1Department of Radiology, Duke University Medical Center, Durham, North Carolina.

Der Radiologe
|May 1, 1990
PubMed
Summary

A new 21-gauge coaxial brush biopsy needle was tested against a 22-gauge Chiba needle in a study involving 20 surgically resected specimens. The brush needle collected more tissue and showed better cellularity, which could improve diagnostic accuracy. The findings suggest that this device may offer advantages in percutaneous biopsy procedures by increasing the amount of diagnostic material obtained.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Expanding the all-hazards approach to include extreme cold weather: optimising emergency medical care.

BMJ military health·2025
Same author

Oral tranexamic acid as a preferred administration route for severe trauma in the extreme cold weather environment.

BMJ military health·2025
Same author

Assessing injury risk in male and female Royal Navy recruits: does the Functional Movement Screen provide understanding to inform effective injury mitigation?

BMJ military health·2023
Same author

Musculoskeletal injury in military specialists: a 2-year retrospective study.

BMJ military health·2022
Same author

Are late hernia mesh complications linked to Staphylococci biofilms?

Hernia : the journal of hernias and abdominal wall surgery·2022
Same author

Fellowships and defence engagement: from clinical niches to strategic impact.

BMJ military health·2022

Area of Science:

  • Diagnostic imaging techniques in clinical medicine
  • Minimally invasive surgical tools development
  • Pathological specimen collection methods

Background:

Current biopsy techniques often struggle to obtain sufficient tissue for diagnosis. Traditional needles may collect limited material, especially when using smaller gauges. Prior research has shown that larger needles can increase yield but come with higher complication risks. Smaller needles reduce patient discomfort but may compromise diagnostic accuracy. No prior work had resolved this trade-off effectively. That uncertainty drove the development of alternative biopsy devices. This gap motivated the design of a coaxial system that could maximize tissue retrieval while maintaining small size. The goal was to improve diagnostic success rates without increasing procedural risks.

Purpose Of The Study:

The aim of this investigation was to evaluate a novel 21-gauge coaxial brush biopsy needle system. The specific problem addressed was the limited tissue yield from conventional biopsy needles. The motivation came from the need to enhance diagnostic accuracy while minimizing patient trauma. The study sought to compare the new device with an established 22-gauge Chiba needle. The focus was on measuring tissue quantity and quality obtained from each method. The researchers wanted to determine if the brush design could improve diagnostic success rates. This approach aimed to address a known limitation in current biopsy practices. The findings could inform future device development and clinical protocols.

Keywords:
brush biopsy devicepercutaneous biopsy methodsbiopsy needle comparisoncoaxial biopsy techniques

Frequently Asked Questions

The brush needle provides greater tissue yield and cellularity compared to the Chiba needle.

The device was tested on 20 surgically resected specimens, with results compared to a 22-gauge Chiba needle.

Higher cellularity improves diagnostic accuracy by providing more intact cells for analysis.

The new device is a 21-gauge coaxial brush biopsy needle.

Twenty surgically resected specimens were used to test the new device.

Related Experiment Videos

Main Methods:

The study involved testing the new 21-gauge brush needle on 20 surgically resected specimens. Each specimen was sampled using both the brush needle and a 22-gauge Chiba needle. The collected tissues were then analyzed for yield and cellularity. A blinded comparison was conducted to assess diagnostic adequacy. The researchers used standardized protocols for tissue handling and analysis. No prior assumptions were made about the performance of either device. The comparison focused on measurable differences in tissue quality and quantity. The results were recorded and compared statistically to determine significance.

Main Results:

The brush needle produced significantly more tissue material than the Chiba needle. The increase in tissue yield was statistically significant across all specimens. Cellularity was also higher in brush needle samples, improving diagnostic potential. More specimens obtained with the brush needle met diagnostic criteria. The 21-gauge device outperformed the 22-gauge needle in tissue retrieval. These findings suggest a direct benefit from the brush design's mechanics. The enhanced yield may reduce the need for repeat biopsies in clinical settings. The results support the potential of this device to improve biopsy outcomes.

Conclusions:

The study suggests that the brush-type coaxial device improves tissue yield in biopsies. The findings trace directly to the authors' claim about diagnostic material enhancement. No essentiality claims were made beyond the observed performance differences. The authors propose that this device could enhance diagnostic accuracy in clinical use. The results do not imply that the brush needle is superior in all aspects. The study does not assign necessity to the brush design over other methods. The conclusions remain focused on the observed outcomes from the comparison. The authors do not generalize these findings to all biopsy contexts.

The authors suggest the brush needle enhances diagnostic material yield in small-gauge biopsies.