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Home NEWS Science News Health

Ultrasound-guided percutaneous needle biopsy excellent for small pleural lesions diagnosis

Bioengineer by Bioengineer
November 6, 2020
in Health
Reading Time: 2 mins read
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US-guided PCPNB is highly likely to be diagnostic for small pleural lesions with nodular morphology on CT or US, or with pleural thickness – 4.5 mm

IMAGE

Credit: American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

Leesburg, VA, November 6, 2020–According to an open-access article in ARRS’ American Journal of Roentgenology (AJR), ultrasound (US)-guided percutaneous pleural needle biopsy (PCPNB) has excellent diagnostic accuracy for small pleural lesions.

“US-guided PCPNB is highly likely to be diagnostic for small pleural lesions with nodular morphology on CT or US, or with pleural thickness – 4.5 mm,” explained Jongmin Park and colleagues from South Korea’s Kyungpook National University.

To determine the diagnostic yield of US-guided PCPNB for small (? 2 cm) pleural lesions and the impact of CT and US morphologic and technical factors, Park’s team retrospectively studied 103 patients (73 men, 30 women; mean age, 60.8) who underwent US-guided PCPNB of a small pleural lesion by a single experienced operator from July 2013 to December 2019. Histopathological results established final diagnosis, including from repeat US-guided and CT-guided biopsies, as well as imaging and clinical follow-up. CT and US assessed pleural morphology and thickness, while US measured needle pathway length throughout the pleura.

Summarizing their results, Park et al. noted: “[US-guided PCPNB] of small pleural lesions had a diagnostic accuracy of 85.4%. The yield was 96.4% for nodular CT lesions, 95.0% for diffuse CT lesions with thickness ?4.5 mm, 55.6% for diffuse CT lesions with thickness.”

Repeating their assessments on both CT and US 2 weeks later yielded the following representative measurements:

  • 82-Year-Old Man Diagnosed With Tuberculous Pleurisy on US-Guided PCPNB (see image)
  • 84-Year-Old Man Diagnosed with Pleural Metastasis From Lung Adenocarcinoma on US-Guided PCPNB (see image)

“In multivariable analysis,” the authors of this AJR article concluded, “pleural morphology on US and needle pathway length through the pleura independently predicted diagnostic yield,” adding that if the pleura is nodular or thicker than 4.5 mm on CT, US-guided PCPNB is justifiable as an initial or repeat diagnostic test.

###

To listen to the AJR Podcast associated with this article, please select one of the following: iTunes, Google Play, or direct download.
https://ajrpodcast.libsyn.com/ultrasound-guided-percutaneous-biopsy-of-small-pleural-lesions

Founded in 1900, the American Roentgen Ray Society (ARRS) is the first and oldest radiological society in North America, dedicated to the advancement of medicine through the profession of radiology and its allied sciences. An international forum for progress in medical imaging since the discovery of the x-ray, ARRS maintains its mission of improving health through a community committed to advancing knowledge and skills with an annual scientific meeting, monthly publication of the peer-reviewed American Journal of Roentgenology (AJR), quarterly issues of InPractice magazine, AJR Live Webinars and Podcasts, topical symposia, print and online educational materials, as well as awarding scholarships via The Roentgen FundĀ®.

Media Contact
Logan K. Young
[email protected]

Related Journal Article

http://dx.doi.org/10.2214/AJR.20.24120

Tags: DiagnosticsGerontologyHealth Care Systems/ServicesHealth ProfessionalsInternal MedicineMedicine/HealthPublic HealthPulmonary/Respiratory Medicine
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