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Health / Clinical diagnostics

Medical imaging

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Displaying 1 - 25 of 228

METROLOGY FOR MRI: THE FIELD YOU'VE NEVER HEARD OF

March 19, 2025
Author(s)
Kathryn Keenan, Stephen Russek, Matt Hall
Quantitative MRI has been an active area of research for decades and has produced a huge range of approaches with enormous potential for patient benefit. In many cases, however, there are challenges with reproducibility which has hampered clinical

Color-map recommendation for MR relaxometry maps

October 16, 2024
Author(s)
Miha Fuderer, Fabio Crameri, Nandita deSouza, Bettina Baessler, Vikas Gulani, Meiyun Wang, Ruud de Boer, Matt Cashmore, Wolter de Graaf, Kathryn Keenan, Dan Ma, Carolin Pirkl, Nico Sollmann, Sebastian Weingartner, Stefano Mandija, Xavier Golay

Gravimetric drop-on-demand inkjet deposition for imaging phantoms with traceable activity

October 7, 2024
Author(s)
Sean Jollota, Denis Bergeron, R. Michael Verkouteren, Svetlana Nour, Ryan Fitzgerald, Ohyun Kwon, Jeffrey Radtke, Bryan Bednarz, Brian Miller, Larry DeWerd
Autoradiography can be an important tool in preclinical investigations with alpha-emitting radionuclides. Precise biodistribution studies establish the effectiveness of chemical "targeting" strategies, assuring that the promise of targeted alpha therapy

Hyperspectral dark-field microscopy of human breast lumpectomy samples for tumor margin detection in breast-conserving surgery

May 7, 2024
Author(s)
Jeeseong Hwang, Philip Cheney, Stephen Kanick, Hanh Le, David McClatchy, Helen Zhang, John Lu, Tae Joon Cho, Kimberly Briggman, David W. Allen, Wendy A. Wells, Brian Pogue
Hyperspectral dark-field microscopy (HSDFM) and data cube analysis algorithms demonstrate successful classification of various tissue types, including the detection of carcinoma regions in human post-lumpectomy breast tissues excised during breast

A Four-Grating Interferometer for X-Ray Multi-Contrast Imaging

March 24, 2024
Author(s)
Daniel Josell, Houxun Miao, James Williams, Jr.
Background: X-Ray multi-contrast imaging with gratings provides a practical method to detect the differential phase and dark-field contrast images in addition to the traditional X-ray absorption image in a laboratory or hospital environment. Systems have

Bottom-up Au Filling of Trenches in Curved Wafers

March 4, 2024
Author(s)
Daniel Josell, Thomas P. Moffat, Thomas Gnaupel-Herold, David Raciti, Martin Stauber, Yu Q, Liyang Chen, M Rawlik, Marco Stampanoni, Lucia Romano
A 〖Bi〗^(3+)-stimulated Au electrodeposition process in slightly alkaline 〖Na〗_3 Au(〖SO〗_3 )_2+〖Na〗_2 〖SO〗_3 electrolytes has been previously demonstrated for void-free extreme bottom-up filling of trenches with aspect ratios (height/width) exceeding 60 in

Liquid scintillation efficiencies, gamma-ray emission intensities, and half-life for Gd-153

November 9, 2023
Author(s)
Denis E. Bergeron, Jeffrey T. Cessna, Ryan P. Fitzgerald, Gulakhshan Hamad, Lizbeth Laureano-Perez, Leticia Pibida, Brian E. Zimmerman
Gadolinium-153 was standardized for activity by live-timed anticoincidence counting and an ampoule was submitted to the international reference system (SIR). Absolute emission intensities for the main γ rays were determined with calibrated high-purity

Low-field MRI: A report on the 2022 ISMRM workshop

June 22, 2023
Author(s)
Adrienne Campbell-Washburn, Katy Keenan, Peng Hu, John Mugler, Krishna Nayak, Andrew Webb, Johnes Obungoloch, Kevin Sheth, Jurgen Hennig, Matthew Rosen, Najat Salameh, Daniel Sodickson, Joel Stein, Jose Marques, Orlando Simonetti

Magnetic Resonance Imaging Biomarker Calibration Service: NMR Measurement of Isotropic Water Diffusion Coefficient

March 30, 2023
Author(s)
Stephen E. Russek, Katy Keenan, Karl Stupic, Nikki Rentz, Michael Boss, Kevin J. Coakley, Amanda Koepke, Cassandra Stoffer
This document describes a calibration service to measure the water diffusion coefficient, or diffusivity, in reference materials and tissue mimics using nuclear magnetic resonance (NMR) techniques. This calibration is restricted to materials which exhibit