Use of Multiphase CT Protocols in 18 Countries: Appropriateness and Radiation Doses
| Autor: | Doris Šegota, Ana Diklić, Riddhi Borse, Jenia Vassileva, Slaven Jurković, Huda Al-Naemi, Antar Ali, Mannudeep K. Kalra, Ili Majidah Binti Hj Zulkipli, Petra Valković Zujić, Madan M. Rehani, Jokha Alkalbani, Nilar Shein, Vesna Gershan, Mohammad Yusuf, Amaal Al-Rasbi, Shivam Rastogi, Seife Teferi, Hassan Mohammed Kharita, Simona Avramova-Cholakova, Ramandeep Singh, Stipe Galić |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Asia Computed tomography Thoracic Cavity Radiation Unnecessary Procedures Radiation Dosage BIOMEDICINE AND HEALTHCARE. Clinical Medical Sciences. Radiology 030218 nuclear medicine & medical imaging Ct chest Pelvis 03 medical and health sciences 0302 clinical medicine Clinical Protocols Surveys and Questionnaires Abdomen Medicine Humans Radiology Nuclear Medicine and imaging multiphase scanning CT chest CT abdomen–pelvis radiation dose justification medicine.diagnostic_test business.industry Diagnostic Tests Routine Radiation dose General Medicine NATURAL SCIENCES. Physics Europe PRIRODNE ZNANOSTI. Fizika 030220 oncology & carcinogenesis Africa Female Radiography Thoracic business Nuclear medicine Tomography X-Ray Computed BIOMEDICINA I ZDRAVSTVO. Kliničke medicinske znanosti. Radiologija |
| Zdroj: | Canadian association of radiologists journal-journal de l association canadienne des radiologistes Volume 71 Issue 1 |
| ISSN: | 0846-5371 |
| Popis: | Purpose: To assess the frequency, appropriateness, and radiation doses associated with multiphase computed tomography (CT) protocols for routine chest and abdomen–pelvis examinations in 18 countries. Materials and Methods: In collaboration with the International Atomic Energy Agency, multi-institutional data on clinical indications, number of scan phases, scan parameters, and radiation dose descriptors (CT dose–index volume; dose–length product [DLP]) were collected for routine chest (n = 1706 patients) and abdomen–pelvis (n = 426 patients) CT from 18 institutions in Asia, Africa, and Europe. Two radiologists scored the need for each phase based on clinical indications (1 = not indicated, 2 = probably indicated, 3 = indicated). We surveyed 11 institutions for their practice regarding single-phase and multiphase CT examinations. Data were analyzed with the Student t test. Results: Most institutions use multiphase protocols for routine chest (10/18 institutions) and routine abdomen–pelvis (10/11 institutions that supplied data for abdomen–pelvis) CT examinations. Most institutions (10/11) do not modify scan parameters between different scan phases. Respective total DLP for 1-, 2-, and 3-phase routine chest CT was 272, 518, and 820 mGy·cm, respectively. Corresponding values for 1- to 5-phase routine abdomen–pelvis CT were 400, 726, 1218, 1214, and 1458 mGy cm, respectively. For multiphase CT protocols, there were no differences in scan parameters and radiation doses between different phases for either chest or abdomen–pelvis CT ( P = 0.40-0.99). Multiphase CT examinations were unnecessary in 100% of routine chest CT and in 63% of routine abdomen–pelvis CT examinations. Conclusions: Multiphase scan protocols for the routine chest and abdomen–pelvis CT examinations are unnecessary, and their use increases radiation dose. |
| Databáze: | OpenAIRE |
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