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New And Efficient Breast Biopsy Technique Developed

Date:
June 25, 2009
Source:
American Roentgen Ray Society
Summary:
Researchers have developed a new breast biopsy technique that could lead to decreased procedure times, and reduced patient discomfort and morbidity, according to a new study. The new technique uses a mechanical arm to guide the needle for the biopsy, and has a braking system to allow for accurate placement of the needle and to avoid needle motion.

Researchers have developed a new breast biopsy technique that could lead to decreased procedure times and reduced patient discomfort and morbidity, according to a study performed at Robarts Research Institute, the University of Western Ontario and London Health Sciences Centre, London, ON, Canada.

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The new technique uses a mechanical arm to guide the needle for the biopsy and has a braking system to allow for accurate placement of the needle and to avoid needle motion.

Breast biopsy procedures, using both methods, were performed on phantoms during the study. “Our results showed that biopsy success rates were greater when using our new guidance system,” said Aaron Fenster, PhD, a co-author of the study. Nathan Bluvol, MSc, is the study's lead author.

“We also showed that experienced and inexperienced radiologists performed a biopsy significantly faster when using our needle guidance system,” said Dr. Fenster. The success rate using the needle guidance system was 95.9% compared to a success rate of 91.3% using the freehand technique. Using the freehand technique, experienced radiologists had a procedure time of approximately 31 seconds. Using the needle guidance system, experienced radiologists had a procedure time of approximately 10 seconds.

“Techniques for improving biopsy procedures are needed to make the procedures more efficient and reduce the variability due to physician experience and size of the target lesion. Breast biopsy using the developed needle guidance system is feasible and I believe it will enable physicians to diagnose early-stage carcinomas more efficiently and accurately, thus decreasing patient morbidity,” said Dr. Fenster.

“The system we designed is a prototype and is required to be redesigned for routine clinical use. Tests with human subjects are planned for the fall of 2009,” he said.


Story Source:

The above story is based on materials provided by American Roentgen Ray Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Bluvol, Nathan, Kornecki, Anat, Shaikh, Allison, Del Rey Fernandez, David, Taves, Donald H., Fenster, Aaron. Freehand Versus Guided Breast Biopsy: Comparison of Accuracy, Needle Motion, and Biopsy Time in a Tissue Model. American Journal of Roentgenology, 2009; 192 (6): 1720 DOI: 10.2214/AJR.08.1434

Cite This Page:

American Roentgen Ray Society. "New And Efficient Breast Biopsy Technique Developed." ScienceDaily. ScienceDaily, 25 June 2009. <www.sciencedaily.com/releases/2009/06/090623133527.htm>.
American Roentgen Ray Society. (2009, June 25). New And Efficient Breast Biopsy Technique Developed. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2009/06/090623133527.htm
American Roentgen Ray Society. "New And Efficient Breast Biopsy Technique Developed." ScienceDaily. www.sciencedaily.com/releases/2009/06/090623133527.htm (accessed October 24, 2014).

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