title: Comparative study of a 15-MHz focused ultrasonic transducer and a 15-MHz unfocused ultrasonic transducer for clinical in-vivo skin-thickness measurements in human subjects.
abstract: A commercial focused 15-MHz immersion ultrasonic transducer and a commercial unfocused 15-MHz thickness-gaging ultrasonic transducer were evaluated for invivo skin-thickness measurements in humans. The unfocused transducer produced thicker skin measurements than did the focused transducer but both measurements were generally within previously reported ranges. The differences in the determined thicknesses may have been a result of the uneven nature of the dermissubcutaneous tissue interface and the ability of the focused transducer to better follow this interface.
authors.affiliation: Department of Mechanical Engineering, University of Kansas, Lawrence 66045.
authors.forename: R E
authors.initials: RE
authors.lastname: Dick
authors.forename: T N
authors.initials: TN
authors.lastname: Faddis
authors.forename: B G
authors.initials: BG
authors.lastname: Barr
mesh_terms: D001132:Arm; D003238:Connective Tissue / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D004817:Epidermis / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D004867:Equipment Design; D005542:Forearm; D006801:Humans; D008961:Models, Structural; D012867:Skin / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D013848:Thigh; D014159:Transducers; D014463:Ultrasonography / Q000295:instrumentation