door RF1989 » ma 08 mei 2023, 20:16
Ah kijk! Thanks voor je uitleg. Ik las dit namelijk en als ik het goed vertaal kan de ct scanner zich aanpassen bij slecht beeld. Maar mogelijk dat jij dit veel beter dan interpreteren dan ik met 0 verstand ervan.
Is there an increase in radiation if a patient is wearing their clothes, cell phone, or other objects, even if they are not in the scan area? Can they increase the radiation exposure? There is no significant change in the radiation you receive because of carrying or wearing objects which are not on the area of the body which is scanned. The technologist will make you remove clothing which has metal objects (zippers, jewelry, metal decorations, underwire bras, etc.) that are in the region of the body which is scanned. This is because those items can create distortions (called artifacts) to the image which make it difficult for your doctor to correctly interpret the picture. Large metal objects which are within the region imaged (say a large metal belt buckle when the abdomen is being scanned) could increase the radiation. Metal of the buckle would absorb x rays and decrease the amount of radiation which can reach your organs for imaging. Just as a cell phone camera may turn on its flash if there is not enough light to take a picture, the CT scanner may increase the x-ray intensity to get a good image in this circumstance. This could increase the radiation dose to the patient, but the metal object has to be in the direct CT beam (be in the area imaged) to cause this.
Ah kijk! Thanks voor je uitleg. Ik las dit namelijk en als ik het goed vertaal kan de ct scanner zich aanpassen bij slecht beeld. Maar mogelijk dat jij dit veel beter dan interpreteren dan ik met 0 verstand ervan.
Is there an increase in radiation if a patient is wearing their clothes, cell phone, or other objects, even if they are not in the scan area? Can they increase the radiation exposure? There is no significant change in the radiation you receive because of carrying or wearing objects which are not on the area of the body which is scanned. The technologist will make you remove clothing which has metal objects (zippers, jewelry, metal decorations, underwire bras, etc.) that are in the region of the body which is scanned. This is because those items can create distortions (called artifacts) to the image which make it difficult for your doctor to correctly interpret the picture. Large metal objects which are within the region imaged (say a large metal belt buckle when the abdomen is being scanned) could increase the radiation. Metal of the buckle would absorb x rays and decrease the amount of radiation which can reach your organs for imaging. Just as a cell phone camera may turn on its flash if there is not enough light to take a picture, the CT scanner may increase the x-ray intensity to get a good image in this circumstance. This could increase the radiation dose to the patient, but the metal object has to be in the direct CT beam (be in the area imaged) to cause this.