caa a22 4500 463199294 CHVBK 20180406164931.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s00276-007-0239-8 doi (NATIONALLICENCE)springer-10.1007/s00276-007-0239-8 Assessment of the stylohoid chain by 3D-CT [Elektronische Daten] [Selma Ramadan, Dilek Gokharman, Işil Tunçbilek, Mahmut Kacar, Pinar Koşar, Uğur Kosar] Background: To assess the variations of stylohyoid chain (SHC) using 3D-CT. Methods: We evaluated a total of 200 SHC on the head/neck CT scans of 100 patients (44 females, 56 males, age range 18-73years). All of the patients had been scanned for neck lesions other than those concerning the region of the SHC. The morphology of both SHCs was examined in the 3D-CT images and the following aspects were evaluated; 1. length, 2. thickness, 3. mediolateral angling (MLA), 4. anteroposterior angling (APA), and 5. bending of the SHC. Results: Absence of the styloid process (n: 5), double proximal origin (n: 2), segmentation (n: 49), and complete ossification (n: 2) were found. The length of the SHC was 27.9± 11.3mm, and 26.2±11.1mm on the right and left, respectively. The mean thickness of the SHC was 5mm, and it showed positive correlation with length (P<0.05). MLA was 73.2±6.7 and 70.7°±8.0° for the right and left, respectively. APA was 64.6°±10.1° and 62.7°±10.2° for the right and left, respectively. There was a negative correlation between the right and left MLA (P=0.001), and a positive correlation between the right and left APA (P=0.001). Nine SHCs had bending of the lower end. Conclusion: Three-dimensional CT gives detailed and reliable information about the SHC. We propose that the bending and thickness, which are new parameters, should be taken into consideration in the CT evaluation and classification of SHC variations. Springer-Verlag, 2007 Anatomic variations nationallicence Classification nationallicence Styloid process nationallicence Temporal bone nationallicence Tomography nationallicence Ramadan Selma Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey aut Gokharman Dilek Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey aut Tunçbilek Işil Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey aut Kacar Mahmut Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey aut Koşar Pinar Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey aut Kosar Uğur Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey aut Surgical and Radiologic Anatomy Springer-Verlag 29/7(2007-10-01), 583-588 0930-1038 29:7<583 2007 29 276 https://doi.org/10.1007/s00276-007-0239-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00276-007-0239-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ramadan Selma Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey aut NATIONALLICENCE 700 1- Gokharman Dilek Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey aut NATIONALLICENCE 700 1- Tunçbilek Işil Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey aut NATIONALLICENCE 700 1- Kacar Mahmut Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey aut NATIONALLICENCE 700 1- Koşar Pinar Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey aut NATIONALLICENCE 700 1- Kosar Uğur Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey aut NATIONALLICENCE 773 0- Surgical and Radiologic Anatomy Springer-Verlag 29/7(2007-10-01), 583-588 0930-1038 29:7<583 2007 29 276 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer