title: Radiation dose management: part 1, minimizing radiation dose in CT-guided procedures.
abstract: OBJECTIVE
  The purpose of this article is to discuss radiation dose during CT-guided interventions and to explain how radiologists can modify technical factors to minimize radiation doses. Scanner-displayed indexes of radiation exposure that are available during the procedure will be defined to increase awareness about CT radiation dose reduction during interventional procedures.
  
  
  CONCLUSIONS
  CT-guided fluoroscopic procedures are safe and effective methods of directed intervention; however, the increasing use of medical radiation is an important consideration. The appropriate use of imaging with an acceptable risk must be considered in every case. During CT-guided interventions, scanner parameters that can be used as a guide for effective dose management, including the CT dose index and dose-length product, are readily displayed. These parameters can be adjusted by modifying the longitudinal scan length, number of scans, and tube current-exposure time product (milliampere × second [mAs]). A team approach to radiation dose reduction will work the best.
authors.affiliation: Department of Radiology, UT Health Science Center at San Antonio, TX 78229-3900, USA. chintapalli@uthscsa.edu
authors.forename: Kedar N
authors.initials: KN
authors.lastname: Chintapalli
authors.forename: Richard S
authors.initials: RS
authors.lastname: Montgomery
authors.forename: Mustapha
authors.initials: M
authors.lastname: Hatab
authors.forename: Venkata S
authors.initials: VS
authors.lastname: Katabathina
authors.forename: Kenneth
authors.initials: K
authors.lastname: Guiy
mesh_terms: D001706:Biopsy; D003287:Contrast Media; D005471:Fluoroscopy; D006801:Humans; D011829:Radiation Dosage; D011835:Radiation Protection / Q000379:methods*; D015641:Radiography, Interventional; D018570:Risk Assessment; D012307:Risk Factors; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media