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  • Ultrasound more...

Ultrasound more accurate for assisting breast cancer treatment: Study

Written By : Medha Baranwal |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2022-04-06T09:00:35+05:30  |  Updated On 6 April 2022 9:01 AM IST
Ultrasound more accurate for assisting breast cancer treatment: Study
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Canada: A recent study in the American Journal of Surgery has found ultrasound to be more accurate than mammography or MRI for measuring the pathology size of breast tumors.

Accoridng to the study, ultrasound and mammogram underestimated tumors up to 20 mm, whereas ultrasound, mammogram, and MRI all overestimated tumors over 50 mm. The researchers also noted that the concordance decreases with increasing size and lobular histology.

Currently, there is a concern for overtreatment of breast cancer and rising mastectomy rates. Hannah Kapur, University of British Columbia, Vancouver, BC, Canada, and colleagues aimed to compare preoperative imaging size (PIS) to postoperative pathology sizes (PPS) with a view to identifying opportunities to de-escalate surgery.

For this purpose, the researchers identified patients having surgery from 2013-2017 for first invasive breast cancers. PIS was then compared with PPS looking at correlation and concordance. Evaluation of associated clinical features was done by regression models stratified by clinical T stage.

Salient findings of the study include:

· 1512 tumors were identified among 1502 patients.

· Ultrasound, mammogram, and MRI correlated to PPS with increasing discordance with increasing PIS.

· Ultrasound underestimated T1 and T2 tumors, and mammogram underestimated T1 tumors and overestimated T3 tumors. For T1 and T2 tumors ultrasound had the highest concordance with PPS.

"Patients can be reassured that imaging size can be used dependably by surgeons to plan lumpectomy for clinical T1 tumors," wrote the authors. "For larger tumors, overestimation by PIS should be considered in surgical planning."

However, the researchers wrote that the diversity of information for patients in the study makes it difficult to draw conclusions about what imaging to recommend preoperatively and when additional studies, such as MRI, would be useful.

Reference:

The study titled, "Accuracy of preoperative imaging estimates: Opportunities to de-escalate surgery for early invasive breast cancer," was published in the American Journal of Surgery.

DOI: https://doi.org/10.1016/j.amjsurg.2022.03.053

KEYWORDS: American Journal of Surgery, ultrasound, breast tumors, MRI, mammography, breast cancer, Hannah Kapur, preoperative, postoperative, imaging size, pathology size, mastectomy, treatment

American Journal of Surgeryultrasoundbreast tumorsbreast cancer
Source : American Journal of Surgery
Medha Baranwal
Medha Baranwal

    MSc. Biotechnology

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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