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Updated: Jan 27, 2026

In Vivo 2-Photon Calcium Imaging in Layer 2/3 of Mice
Published on: March 13, 2008
225Ac Prostate-Specific Membrane Antigen Posttherapy α Imaging: Comparing 2 and 3 Photopeaks
Sharjeel Usmani, Rashid Rasheed, Fareeda Al Kandari
1Jaber Al-Ahmad Centre for Nuclear Medicine and Molecular Imaging, Kuwait City, Kuwait.
Abstract:
Ac-based PSMA-targeted therapy has emerged as promising agent for the treatment of metastatic castration-resistant prostate cancer. Posttherapy image is used for tracer localization and dosimetry. Prior 2 photopeaks of 440 and 218 KeV were reported for posttherapy imaging. Our study of gamma ray spectrum, phantom, and clinical images show that imaging with 3 major photopeaks of 78, 218, and 440 KeV gives better quality images, high count statistics, and higher number of lesion delineations. It is therefore suggested that posttherapy imaging may be carried out using 3 major abundant photopeaks.
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