OBJECTIVE To investigate whether the low-tube-voltage (80-kVp), intermediate-tube-current (340-mAs) MDCT using the Iterative Reconstruction in Image Space (IRIS) algorithm improves lesion-to-liver contrast at reduced radiation dosage while maintaining acceptable image noise in the detection of hepatocellular carcinomas (HCC) in thin (mean body mass index, 24 ± 0.4 kg/m(2)) adults. SUBJECTS AN...

background: in radiation treatment of moving targets located in thorax region of patient body, the delivered dose does not match with the planned treatment, resulting in some over and under dosage in the tumor volume, as a function of motion magnitude and frequency. several efforts have been done to investigate the target motion effects on dose distribution in the target and surrounding normal ...

discussion while this novel type of drug delivery is known as a suitable substitute for oral and parenteral administration, it was well accepted and extensively mentioned in persian medical and pharmaceutical manuscripts and other traditional systems of medicine as well. accordingly, medieval pharmaceutical standpoints on nasal dosage forms could still be an interesting subject of study. theref...

the pharmacokinetics of levofloxacin following its single intramuscular administration (3 mg/kg) was investigated in six male buffalo calves. peak plasma level of 2.95 ± 0.13μg/ml was observed at 1 h and the drug level above mic90  in plasma was detected up to 12 h of administration. the bioavailability was 68.1 ± 5.4% and levofloxacin was bound to the plasma proteins to the extent of 19.1 ± 1....

This research presents a statistical study of radiation generated from communication towers in the Nineveh Plain region Baghdeda. The intensity energy was measured at 10 meters away tower different locations, using (1PC XH-901 Dosimeter/ Personal Dose Alarm / Radiation Detector, dosage rate: 0.01 μSv/h to 150μSv/h) measure amount various times. Energy densities were and compared with standard l...

Study Design: Prospective non-randomised. Objective: To evaluate radiation exposure using fluoroscopy compared to x-rays in the monitoring of a growing rod system. Background: The integrity of implants in the treatment of early onset scoliosis (EOS) is usually monitored with repeated plain x-rays. The cumulative dosage of ionizing radiation may be high. Children are highly sensitive to the carc...

Sir, The Editorial by Raphael and Tomlinson (1986;55:421-2) was an interesting review of some specific aspects of radiation dosage to cardiologists. The authors advised, quite correctly, that those performing catheterisations should be instructed in radiation safety practice before or early in their training. They did not point out, however, the complete absence of structured tuition in radiati...

Radiation therapy in patients with head and neck cancer has a toxic effect on mucosa, the soft tissue in and around the mouth. Hence mucositis is a serious common side effect and is a condition characterized by pain and inflammation of the surface of the mucosa. Although the mucosa recovers during breaks of and following the radiotherapy course, the recovery will depend on the type of tissue in...

Many types of materials such as inorganic semiconductors have been employed as detectors for nuclear radiation, the importance of which has increased significantly due to recent nuclear catastrophes. Despite the many advantages of this type of materials, the ability to measure direct cellular or biological responses to radiation might improve detector sensitivity. In this context, semiconductin...

PURPOSE To examine direct and bystander radiation-induced effects in normal umbilical-cord stromal stem cell (HCSSC) lines and in human cancer cells. MATERIALS AND METHODS The UCSSC lines used in this study were obtained in our laboratory. Two cell lines (UCSSC 35 and UCSSC 37) and two human melanoma skin-cancer cells (A375 and G361) were exposed to ionizing radiation to measure acute radiati...