title: Scalp localization using a simple algorithm.
abstract: We have developed a simple algorithm for scalp localization for craniotomy. Using a series of CT/MRI data, the point on the scalp closest to the center of the lesion (T) is determined by our program. A plane (plane R) is defined by three points: bilateral auditory meati and T. Point S is the intersection of three planes: the plane R, the scalp surface and the midsagittal plane. The distance from either S or the ipsilateral external auditory meatus to T is measured along the scalp surface on the plane R. The distance from the nasion to S along the scalp surface on the midsagittal plane is also measured. To determine the craniotomy site, these distances are measured directly on a patient's scalp in the operating room. This simple and accurate method for scalp localization could be used by installing our program in conventional CT/MR scanners.
authors.affiliation: Department of Neurosurgery, Osaka University Medical School, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Nakajima
authors.forename: T
authors.initials: T
authors.lastname: Yoshimine
authors.forename: S
authors.initials: S
authors.lastname: Wakita
authors.forename: Y
authors.initials: Y
authors.lastname: Sato
authors.forename: N
authors.initials: N
authors.lastname: Hata
authors.forename: M
authors.initials: M
authors.lastname: Yamada
authors.forename: M
authors.initials: M
authors.lastname: Fujiwara
authors.forename: S
authors.initials: S
authors.lastname: Tamura
authors.forename: A
authors.initials: A
authors.lastname: Kato
authors.forename: T
authors.initials: T
authors.lastname: Hayakawa
mesh_terms: D000368:Aged; D000465:Algorithms; D001165:Arteriovenous Malformations / Q000000981:diagnostic imaging / Q000601:surgery*; D003399:Craniotomy / Q000379:methods*; D005260:Female; D006801:Humans; D012535:Scalp; D013238:Stereotaxic Techniques; D014057:Tomography, X-Ray Computed