A new brain CT reference line: the lower eyelid to the inner occipital base line closely parallels the Talairach-Tournoux line
| Autor: | Hiroshi Ishizaka, Hideo Morita, Toshio Kubota, Hiroyuki Nagase, Minoru Naka, Katsumi Yanagisawa, Yoshito Tsushima |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
brain
Anterior commissure anterior commissure posterior commissure 030218 nuclear medicine & medical imaging Brain ct 03 medical and health sciences 0302 clinical medicine Posterior commissure medicine magnetic resonance imaging X-ray computed tomography medicine.diagnostic_test business.industry Research fungi food and beverages Magnetic resonance imaging General Medicine Anatomy Sagittal plane medicine.anatomical_structure Central nervous system Eyelid Line (text file) Reference line business 030217 neurology & neurosurgery |
| Zdroj: | Acta Radiologica Open |
| ISSN: | 2058-4601 |
| Popis: | Background There is no standardized brain computed tomography (CT) reference line that can be determined on both scout and reformatted sagittal CT images. Here, a tangential line from the anterior edge of the lower eyelid to the inner table of the occipital base (LEL/O line) appears nearly parallel to the Talairach–Tournoux (T/T) line, which shows a consistent intracranial anatomical relationship among subjects, and acts as a standard reference line for magnetic resonance (MR) imaging. Purpose To quantitatively validate the LEL/O line as a new standard brain CT reference line. Material and Methods We measured: angle 1 = the LEL/O line on scout images from the LEL/O line on parasagittal CT images (n=93); and angle 2 = the LEL/O line on scout images from the T/T line on high resolution midsagittal MR images (n=97). Angles in a clockwise direction were defined as positive and were expressed as mean±SD with the 95% confidence interval (CI) of the SD. Angle 2 was measured independently by two observers and intraclass correlation coefficients (ICCs) were calculated. Results Angle 1 was –0.4°±1.2° (95% CI of SD 1.1°–1.5°); angle 2 was –0.4°±2.0° (95% CI of SD, 1.8°–2.4°). The ICC in the angle 2 measurement was 0.780 (P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|