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IRCT20230411057881N1 IRCT 2023-05-21 Semnan University of Medical Sciences Examining breast dose reduction in CT scan with a new combination of x-ray absorbing materials with minimal impact on image quality. Design and fabrication of radioprotective shield to reduce the radiation dose to the breast in patients undergoing thoracic computed tomography examinations 2023-03-21 anticipated 60 Complete https://irct.ir/trial/69552 interventional Randomization: Not randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention, Blinding description: The radiation shield image was cut from the CT scan images of the lungs of 30 female patients with breast shields, and then the images were given to a radiologist along with the CT scans of the lungs of 30 female patients who were scanned without radiation shields on their breasts. It can be checked for the presence of artifacts (lung area, mediastinum, breast) or the absence of artifacts in the images. N/A Dosimetry with and without chest phantom radiation shields and thorax phantom - examination of noise and average CT number in the CT scan phantom CTDI image with and without radiation shields - examination of artifacts in the chest CT scan image of female patients without and with the best shield. Intervention 1: Intervention group: 30 female patients aged 20-75 years, on whom we put the best radiation shield (suitable dose reduction and minimal noise on the image) during lung CT. Intervention 2: Control group: 30 female patients aged 20-75 years, who do not put any radiation protection on their chests during lung CT scan, and the images of this group are for comparison with the images of the intervention group in terms of image artifacts. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no further information
public Marziye Behmadi
Basij Blvd., Semnan University of Medical Sciences and Healthcare Services
Semnan Iran (Islamic Republic of) 35147-99442 +98 23 3344 1022 behmadim@semums.ac.ir Semnan University of Medical Sciences scientific Marziye Behmadi
Basij Blvd., Semnan University of Medical Sciences and Healthcare Services
Semnan Iran (Islamic Republic of) 35147-99442 +98 23 3344 1022 behmadim@semums.ac.ir Semnan University of Medical Sciences Iran (Islamic Republic of) 20 to 75 years old woman subject to chest CT scan 20 years 75 years Female A patient who has a reduced level of consciousness (as a result of trauma or stroke or...) the patient's lack of consent to continue participating in the research Prevention Prevention Intervention group: 30 female patients aged 20-75 years, on whom we put the best radiation shield (suitable dose reduction and minimal noise on the image) during lung CT. Control group: 30 female patients aged 20-75 years, who do not put any radiation protection on their chests during lung CT scan, and the images of this group are for comparison with the images of the intervention group in terms of image artifacts. Investigating noise and average CT number in CTDI phantom CT image with and without radiation protection. Timepoint: During 1months. Method of measurement: Using DICOM files software. Chest and thorax phantom dosimetry with and without radiation shields. Timepoint: 2 months. Method of measurement: Using TLD dosimeter and RTI Piranha dosimeter. Artifact examination in lung CT images of female patients without radiation protection and with the best protection (in terms of reducing the dose and creating the least noise on the image) is placed on their chest. Timepoint: 3 months. Method of measurement: Review of images by an experienced radiologist. Semnan University of Medical Sciences Approved 2022-12-03 Ethics Committee of Semnan University of Medical Sciences Headquarter of Semnan University of Medical Sciences and Health Services, Bassij Blvd Semnan Semnan Iran (Islamic Republic of)