[Monitoring of 131-Iodine Contamination in Saliva and Perspiration of Patients with Differentiated Thyroid Cancer Treated by 131-Iodine].

Objective To investigate the radioactivity of 131-iodine (I) in saliva and perspiration of patients with differentiated thyroid cancer after treatment with I,and thereby to provide evidence for the control of radioactive contamination.Methods Fifteen patients with differentiated thyroid cancer who would be treated with I were enrolled.Samples of saliva and perspiration of them were collected 2-48 h after the oral administration of 3.

[Design and Test of Automatic Dispensing and Injecting System for Positron Radiopharmaceuticals].

Objective To design a novel automatic dispensing and injecting system of positron radiopharmaceuticals,for precise dose dispensing,simplified operation,and reduction of occupational radiation exposure. Methods The automatic dispensing and injecting system was fabricated with tungsten alloy as the shielding material.The performance and radiation protection of the device were assessed.

[Clinical application of radionuclide bone scintigraphy in diagnosis of avascular osteonecrosis in patients with severe acute respiratory syndrome in convalescence].

Objective: To evaluate the clinical value of radionuclide bone scintigraphy in diagnosis of avascular osteonecrosis in patients with severe acute respiratory syndrome (SARS) in convalescence.

Methods: We performed three-phase bone scintigraphy of femoral head regions and whole-body bone scan in SARS patients 4-6 months after they recovered from the syndrome, and then compared the results with simultaneous MRI.

Results: Typical avascular necrosis at different stages and severities was found on bone scintigraphy at 31 femoral heads of 16 SARS patients, 97% of which were MRI positive.

[Three-dimensional assessment of the remnant hepatic function following surgery using single photon emission computed tomography in an animal model].

Objective: The predictive value of postoperative hepatic function evaluated by liver functional imaging combined with single photon emission computed tomography (SPECT) technique was appraised in the present study.

Methods: Twenty New Zealand white rabbits were divided randomly into two groups, including the Hepatic Fibrosis with Carcinoma Group (FC-Group, n = 10) and the Control Group (C-Group, n = 10). All the rabbits underwent the resection of outer-right lobe of the liver.

[Safety, biodistribution, and dosimetry of myocardial imaging agent 99Tc(m)N-NOET in healthy volunteers].

Objective: To study the safety, biodistribution, and dosimetry of myocardial perfusion imaging agent 99Tc(m)N-NOET in 10 healthy volunteers.

Methods: 744-792 MBq of 99Tc(m)N-NOET was injected to each volunteer. Safety parameters and adverse event was measured in 24 hours of injection.