Shimadzu debuts DDR feature for mobile x-ray system

AuntMinnie.com staff writers

Jul 5, 2023

2020 02 28 21 21 6297 Shimadzu Rsna 2019 400

Shimadzu Medical Systems has launched a dynamic digital radiography (DDR) function for its MobileDaRt Evolution mobile x-ray system.

The company's MobileDaRt Evolution MX8 Version k-type system can now support capabilities with the DDR option. DDR is an advanced x-ray technology that makes it possible to provide a series of individual digital images from a sequence of pulsed x-rays, which creates dynamic imaging studies, the company said.

Shimadzu noted the product will be showcased at the American Healthcare Radiology Administrators (AHRA) annual meeting to be held July 10-12 in Indianapolis, IN.

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(a) Raw example of a dynamic digital radiograph. (b) Contrast equalization using contrast-limited adaptive equalization shows improved anatomical visualization. (c) Training data is generated through manually labeling using SLEAP’s graphical user interface. (d-e) Neural network detection schematic. For each quadrant a series of two networks were used. The first identifies the quadrant center, the second using input of the first, then identifies individual anatomical landmarks within a quadrant. (d) Four neural networks were trained, each with the objective of identifying a chest quadrant centroid. The four separate quadrants are visualized as colored boxes (right upper quadrant, green; right lower quadrant, blue; left upper quadrant, red; left lower quadrant, yellow). (e) Serial centroid then anatomical identification. Two quadrant examples showing confidence maps of trained neural networks identifying quadrant centroids (left) and then anatomical confidence maps (right). Image and caption courtesy of Chest Pulmonary.

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