Effect of MSCT Scanning Dose Reduction on the Diagnosis of Craniocerebral Combined with Facial Trauma

doi:10.7517/issn.1674-0475.220334

Abstract

Abstract: This paper investigated the effect of reduced dose of multislice spiral CT (MSCT) on the diagnosis of craniocerebral combined with facial trauma. Selected 180 patients with craniocerebral combined with facial trauma and divided into group A, group B and group C, with 60 cases in each group. Group A was given tube current 220 mA and 200 mA MSCT scanning, group B was given tube current 220 mA and 180 mA MSCT scanning, and group C was given tube current 220 mA and 160 mA MSCT scanning. Analyzed the detection, image quality and radiation dose of craniofacial fractures in each group. CT dose index volume (CTDI_VOI), dose length product (DLP) and effective radiation dose (ED) in group A under 200 mA, 180 mA in group B and 160 mA in group C were significantly lower than those in under 220 mA in group A, B and C (P<0.05). The CTDIVOI, DLP and ED in group C with tube current of 160 mA were significantly lower than those in group A with tube current of 200 mA and group B with tube current of 180 mA (P<0.05). In the diagnosis of craniocerebral combined with facial trauma, appropriately reducing the MSCT scanning dose will not affect the diagnosis and image quality, and will help to reduce the radiation harm to patients.

Key words: multislice spiral CT, low dose, craniocerebral combined with facial trauma, diagnosis, radiation dosage

TAO Xiaofei, MA Wencan, DING Zhichao, LI Yaxin, HAN Fusheng, TANG Yang. Effect of MSCT Scanning Dose Reduction on the Diagnosis of Craniocerebral Combined with Facial Trauma[J]. IMAGING SCIENCE AND PHOTOCHEMISTRY, 2022, 40(5): 1153-1157.

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