Connect with us

Medicine

Using Deformable Image Registration for Adaptive Prostate Cancer Treatment

Published

on

A study aimed to assess and compare the capabilities of two commercially available deformable image registration algorithms—Raystation 9A (A1) and Velocity AI (A2)—for possible use in adaptive prostate radiotherapy based on computed tomography (CT) images to cone-beam CT (CBCT) images. The results were published in Zeitschrift für medizinische Physik.

In this study, 10 patients treated for localized prostate cancer were retrospectively selected and analyzed. The propagation of rectum contours was assessed from a set of CT-CBCT pairs. Two independent observers carried out qualitative analysis using the two-level descriptive scale of either “meet” or “fail.”

The analysis showed that 83.7% of the rectum contours were scored identically (meet or fail) for both algorithms, from which 53.5% and 55.8% are failed results for A1 and A2, respectively, the investigators noted. Regarding rectum size, differences between referenced and deformation-based values were 5.5 and 5.8mm, and for the rectum wall, the prostate marker distance (WMD parameter) was 4.5 and 5.5mm for A1 and A2, respectively. The researchers added that between-group differences in prostate marker distance were statistically significant (P = 0.007).

“In both tested algorithms, neither effectiveness nor measured uncertainties in the propagation of rectum contour process in prostate patient cases were satisfactory,” the researchers concluded. “Careful selection of input images followed by case/set-based verification of every deformable registration is a substantial step to avoid inappropriate results.”

Source Here: docwirenews.com

Continue Reading
Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Medicine

Afghan Delegation Visits Norway for Talks: Spokesman

Published

on

KABUL, Jan. 22 (Xinhua) — A delegation of Afghanistan’s caretaker government on Saturday left for Norway for talks on different issues, a spokesman of the Foreign Ministry said.

“A senior delegation led by (acting Foreign Minister) Mawlawi Amir Khan Muttaqi left for Norway in a special flight of the said country where talks will be held with representatives of various countries & a number of Afghans about human

Article: bignewsnetwork.com

Continue Reading

Medicine

Mercy’s Gynecologic Oncologists on Cervical Health Awareness

Published

on

Post Content

Article: newswise.com

Continue Reading

Medicine

Gender Bias in Lab Groups Not Rooted in Personal Preference

Published

on

Gender bias in physics labs – where women typically work more on the computer and on communication tasks, while men more often handle equipment – is not rooted in personal preference, according to new Cornell research.

Article: newswise.com

Continue Reading

Trending

Top100.biz