An Evaluation of 90Y Bremsstrahlung SPECT Image Quality in the Presence of 99mTc: A Technical Perspective on Same-Day Radioembolization.

In same-day radioembolization, 99mTc-MAA SPECT/CT, 90Y radioembolization, and post-treatment 90Y SPECT/CT procedures are conducted on the same-day, resulting in a dual-isotope environment of 90Y and 99mTc during post-treatment imaging. This study aimed to quantify the impact of 99mTc on 90Y bremsstrahlung-SPECT/CT image quality and to establish an optimised imaging protocol for both clinical practice, and with advanced reconstruction techniques. Utilising a NEMA IQ phantom, contrast recovery coefficients (CRCs) were measured to evaluate the 90Y image quality degradation caused by 99mTc.

Radiation Lobectomy in Adjunct to Double Vein Embolization to Reach Sufficient Future Liver Remnant in Patients with Colorectal Cancer Liver Metastases: A Case Series.

Purpose: To describe the outcome of radiation lobectomy (RL) after double vein embolization (portal vein embolization + hepatic vein embolization) for patients with insufficient future liver remnant growth.

Materials And Methods: All patients with insufficient FLR function (as determined by hepatobiliary scintigraphy (HIDA); < 2.7%/min/m) after double vein embolization who underwent RL between 2020 and 2023 were selected.

Safety and Feasibility of Interventional Hybrid Fluoroscopy and Nuclear Imaging in the Work-up Procedure of Hepatic Radioembolization.

Purpose To evaluate the safety and feasibility of a novel hybrid nuclear and fluoroscopy C-arm scanner to be used during the work-up procedure of hepatic radioembolization. Materials and Methods In this prospective first-in-human clinical study, 12 participants (median age, 67 years [range: 37-78 years]; nine [75%] male, three [25%] female) with liver tumors undergoing work-up for yttrium 90 radioembolization were included (ClinicalTrials.gov NCT06013774).

Holmium-166 radioembolisation dosimetry in HCC.

Purpose: To evaluate dosimetry, dose-response and dose-toxicity relationships for holmium-166 (Ho) radioembolisation in patients with hepatocellular carcinoma (HCC).

Methods: Thirty-one patients with hepatocellular carcinoma were included in the HEPAR Primary study (NCT03379844, registered on December 20th, 2017) and underwent Ho-microspheres radioembolisation. Linear mixed models assessed the association between tumour absorbed doses and response based on mRECIST both on tumour and patient level.