Key Role of Personalized Dosimetry in Dose Adjustment for Selective Internal Radiotherapy: Retrospective Study of Patients Treated With 90Y Resin Microspheres.

Purpose: Selective internal radiotherapy with 90Y microspheres is widely used for the treatment of patients with liver cancer. A dosimetric analysis using the dosimetry software Simplicit90y (Boston Scientific, Natick, MA) was conducted to define doses to the tumor and healthy liver, and to determine a threshold tumor dose that could predict progression-free survival.

Methods: Patients experiencing hepatocellular carcinoma and treated with 90Y-labeled resin microspheres were included in a retrospective study.

[Uretero-ileoplasty in bilharzian uretero-hydronephrosis].

The authors report 22 cases of uretero-ileo-plasty for uretero-hydronephrosis due to schistosomiasis. The indications for operation depend on the following criteria: the degree of dilatation which varies from simple atonia to very large hydronephrosis which one must not wait for, ureteral stenosis, vesico-ureteral reflux, the degree of renal failure assessed by studies of creatinine and urea clearance and the resistance to treatment. The operative technique which is not specific for bilharziasis includes uretero-ileo-plasty which is often bilateral, for even in asymmetrical cases, the least affected ureter is often of poor quality.