UNLABELLED We studied the scintigraphic and associated clinical characteristics of radioiodine breast uptake in nonbreastfeeding thyroid cancer patients undergoing routine whole-body radioiodine scanning. METHODS We performed a retrospective review of the radioiodine scans and medical records of 30 prospectively collected cases. RESULTS Twenty-three nonpregnant patients had discontinued bre...

A pharmacokinetic study was done to elucidate the body distribution, elimination, and metabolism of m-[131I]iodobenzylguanidine (m-[131I]IBG). For this purpose, an analytical method using solid phase extraction columns was developed. m-[131I]IBG was administered as an i.v. infusion according to different schedules with doses of 7,055 to 13,580 MBq/m2. At the start of the infusion m-[131I]IBG ac...

  Introduction: Radioiodine (131I) is an effective and inexpensive alternative to surgery in the treatment of thyroid hyperfunction. The debate today concerns the maximum and minimum ablative doses, and factors leading to hypothyroidism. Patients & Method: 1035 hyperthyroid patients treated with weight-adjusted ablative doses of 131I were retrospectively assessed for ...

PURPOSE A disadvantage of conventionally radioiodinated monoclonal antibodies (mAb) for cancer therapy is the short retention time of the radionuclide within target cells. To address this issue, we recently developed a method in which radioiodine is introduced onto antibodies using an adduct consisting of a nonmetabolizable peptide attached to the aminopolycarboxylate diethylenetriaminepentaace...

OBJECTIVE Neuroblastoma is the third most common malignancy of childhood. 131I-MIBG scintigraphy must be performed in patients with neuroblastoma at the time of staging. The aim of this study is to identify the role of 131I-MIBG scintigraphy in neuroblastoma patients in correlation with other diagnostic modalities for staging of the disease. METHODS Twenty six patients provisionally diagnosed...

Treating breast cancer brain metastases (BCBMs) is challenging. Na+/I- symporter (NIS) expression in BCBMs would permit their selective targeting with radioiodide (131I-). We show impressive enhancement of tumor response by combining131I- with gemcitabine (GEM), a cytotoxic radiosensitizer. Nude mice mammary fat-pad (MFP) tumors and BCBMs were generated with braintropic MDA-MB-231Br cells trans...

Studying the migration and diffusion of radionuclides plays an important role in emergency decision making accident mitigation floating nuclear power plants. Based on CALPUFF model, this paper simulates spatial distribution concentration airborne 131I under conditions sailing supply LOCA (Loss-of-Coolant Accident) plant, influence four meteorological parameters, namely wind speed, cloudiness, t...

m-[l25I]iodobenzylguanidine (m-[125I]MIBG) has been suggested as an alternative to m-[131I]MIBG for the treatment of metastatic neuroblastoma to achieve a higher radiation dose in micrometastases. To compare these two radiopharmaceuticals, a mathematical model was developed in the present study that allows for the calculation of radiation dose rates within small spherical tumors for different d...

BACKGROUND Overexpression of syndecan-1 (CD138) in breast carcinoma correlates with a poor prognosis and an aggressive phenotype. The objective of this study was to evaluate the potential of targeting CD138 by immuno-PET imaging and radioimmunotherapy (RIT) using the antihuman syndecan-1 B-B4 mAb radiolabeled with either 124I or 131I in nude mice engrafted with the triple-negative MDA-MB-468 br...