نتایج جستجو برای: ray examinations

تعداد نتایج: 336445  

2013
Takashi Nonaka

Fussa Hospital is located in the western part of the Tama region of Tokyo. It functions as a general hospital with 316 beds and provides health care to local and regional communities. The Department of Radiology has 12 full-time medical X-ray technologists and two full-time radiologists, who perform CT, MRI, various types of radiography, contrast examinations, image diagnosis, nuclear medicine ...

Journal: :Congenital anomalies 2002
Tomoko Kusama Katumasa Ota

Application of diagnostic X-ray examination to pregnant women is complicated since risks to both mother and embryo/fetus must be considered. Embryos and fetuses are more sensitive to radiation than adults or children. The threshold doses for fetal death, malformations and mental retardation which are deterministic effects, are reported to be 100-200 mGy or higher. The relative risk for childhoo...

2017
Masahiro Hashida Ryousuke Kamezaki Makoto Goto Junji Shiraishi

The ability to predict hazards in possible situations in a general X-ray examination room created for Kiken-Yochi training (KYT) is quantified by use of free-response receiver-operating characteristics (FROC) analysis for determining whether the total number of years of clinical experience, involvement in general X-ray examinations, occupation, and training each have an impact on the hazard pre...

2000
Walter Huda Nikolaos A. Gkanatsios

The energy imparted, ε, to a patient undergoing an extremity x-ray examination may be obtained from the dosearea product incident on the patient. Values of energy imparted can be subsequently converted into the corresponding effect ive dose , E, us ing an extremity spec i f i c EIε rat io . In th i s study, an E/ε ratio of 3 mSv/J was used to convert values of energy imparted into the correspon...

Journal: :Diagnostic and interventional radiology 2014
Tolga İnal Gökçe Ataç

PURPOSE We aimed to determine the radiation doses delivered to patients undergoing general examinations using computed or digital radiography systems in Turkey. MATERIALS AND METHODS Radiographs of 20 patients undergoing posteroanterior chest X-ray and of 20 patients undergoing anteroposterior kidney-ureter-bladder radiography were evaluated in five X-ray rooms at four local hospitals in the ...

1949
P. K. Ghosh

The case of a 89-year-old women with mammary tuberculosis is reported. The diagnosis was based on histopathological and bacteriological examinations. Chest X-ray showed a lung-pleural tuberculosis, so we considered it a secondary organ manifestation.

2011
B F Wall R Haylock J T M Jansen M C Hillier D Hart P C Shrimpton

The radiation risks from medical x-ray examinations have been evaluated as a function of the age and sex of the patient in terms, separately, of the lifetime risk of radiationinduced cancer to the patient and the risk of deleterious heritable effects appearing in the progeny of the patient. These risks have been estimated on the basis of the risk models described in ICRP Publication 103, togeth...

2013
Ali Chaparian Mahdi Aghabagheri

BACKGROUND Pregnant women are sometimes exposed to ionizing radiation in radiology examinations for various reasons. In such cases, the radiation dose to the conceptus and subsequent risks should be estimated. OBJECTIVE The purpose of this study was the calculation and presentation of fetal dose and subsequent risks resulted from different X-ray examinations. MATERIALS AND METHODS An analyt...

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