title: Improvement in CT pelvimetry.
abstract: When computed tomographic (CT) digital radiography is used for pelvimetry, measurement error may occur. Geometric distortion in the lateral direction of the CT digital radiograph can lead to an error in any measurement of the transverse pelvic inlet. The authors measured the magnitude of this error on two scanners and present a general method for correction of this potential error. The authors also showed that an additional dose reduction is possible if the patient is imaged in the posteroanterior rather than anteroposterior projection.
authors.affiliation: Department of Radiology, MetroHealth Medical Center, Case Western Reserve University, Cleveland, OH 44109.
authors.forename: E J
authors.initials: EJ
authors.lastname: Wiesen
authors.forename: J R
authors.initials: JR
authors.lastname: Crass
authors.forename: E M
authors.initials: EM
authors.lastname: Bellon
authors.forename: G G
authors.initials: GG
authors.lastname: Ashmead
authors.forename: A M
authors.initials: AM
authors.lastname: Cohen
mesh_terms: D005260:Female; D005333:Fetus / Q000528:radiation effects; D006801:Humans; D008961:Models, Structural; D010387:Pelvimetry / Q000379:methods*; D011247:Pregnancy; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement / Q000379:methods; D014057:Tomography, X-Ray Computed