Cone beam computed tomography registration for 3-D airway analysis based on anatomic landmarks  

Oleh:

Alsufyani, Noura A. ; Dietrich, Nicholas H. ; Lagravere, Manuel O. ; Carey, Jason P. ; Major, Paul W.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology (keterangan: ada di ClinicalKey) vol. 118 no. 03 (Sep. 2014), page 371–383 .

Ketersediaan

Perpustakaan FK Nomor Panggil: O04.K Non-tandon: tidak ada Tandon: 1

Lihat Detail Induk

Isi artikel

Objectives Explore craniofacial landmarks reliability to superimpose cone beam computed tomography (CBCT) images and assess impact of plane reorientation on airway parameters. Study design 10 CBCTs were marked 3 times at baseline, 3 T1, to test landmark reliability. Measurement errors of new coordinate system were tested using 3 T1, and other 10 paired CBCT images, at T1 and T2. Effect on upper airway was assessed using volume, surface area, and point-based analysis. Results Tips of nasal bone and clivus and foramina spinosa defined the new coordinate system. Plane reorientation didn't affect landmark identification reliability and significantly reduced interlandmark distances from T1-T2. Airway volume changed by 25.76 ± 24.9%, surface area by 13.85 ± 10.8%, and mean part analysis was 0.43 ± 0.3 mm. Strong correlation (R2 > 65%) was found between airway analysis and large distances in second and third cervical vertebrae. Conclusions Coordinate transformation significantly reduced measurement errors in longitudinal CBCT data; however, it is not designed to correct for large neck flexion.

Opini Anda

Klik untuk menuliskan opini Anda tentang koleksi ini!

Kembali