A survey of computed tomography dose index and dose length product level in usual computed tomography protocol
| Autor: | Mehran Mohseni, Ehsan Mihandoost, Akbar Aliasgharzadeh |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Male
Dose Length Product Computed tomography dose index Computed tomography Radiation Dosage lcsh:RC254-282 Pelvis 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Surveys and Questionnaires Abdomen Paranasal Sinuses Humans Medicine Radiology Nuclear Medicine and imaging In patient Nasal sinuses Protocol (science) Reference dose medicine.diagnostic_test business.industry General Medicine Thorax lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens Oncology dose length product reference dose level 030220 oncology & carcinogenesis Reference values Female Tomography X-Ray Computed business Nuclear medicine Head weighted computed tomography dose index |
| Zdroj: | Journal of Cancer Research and Therapeutics, Vol 14, Iss 3, Pp 549-552 (2018) |
| ISSN: | 0973-1482 |
| Popis: | Background: Nowadays, the use of computed tomography (CT) as a diagnostic tool has been considerably increased. Therefore, implementation of the program to conform the protection regulations on the CT scan is necessary to reduce the detrimental effects of radiation. Objective: This study was performed to measure weighted CT dose index (CTDIW) and dose length product (DLP) in routine CT protocols of the adult patients. Methods: In this study, the patient dose was determined in routine CT protocols. The CT scanner used in this study was a single-slice Toshiba model. Scan parameters for each protocol were registered for 10 standard sized patients and then by applying it to the CT system, CTDIw and DLP mean values were calculated and finally the values of dose were compared with the reference dose limit. Results: The mean values of CTDIw and DLP for head, para nasal sinuses, chest, abdomen, and pelvis protocols were 34.11, 19.67, 15.47, 13.95, 10.08 mGy and 362.67, 153.97, 307.33, 346.07, 189.37 mGy.cm, respectively. The mean values of CTDIW and DLP obtained in all of the protocols were less and even less than half in some of the protocols compared with the European guidelines and the UK reference values. However, mean values of CTDIw in the Chest and Abdomen protocols, were greater than IAEA reported values. Conclusions: Using lower milli Amperes and higher kilo voltage peak as well as minimizing scan area and number of slices should be considered for more reduction in patients' dose. |
| Databáze: | OpenAIRE |
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