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Keywords:
Paediatric, CNS, MR, CT, Diagnostic procedure, Developmental disease
Authors:
N. K. Altinbas , G. Güral, A. Güneş, B. E. Yildiz Derinkuyu , H. Akmaz Ünlü; Ankara/TR
DOI:
10.1594/ecr2015/C-0010
Methods and materials
From among 550 patients who were admitted for cranial examination to our Hospital’s Radiology Department during 2012 and 2013 with various pre-diagnosis,
CT and MR imaging findings of six patients exhibiting arrested pneumatization were evaluated retrospectively.
The age,
symptoms,
gender of the patients and imaging indications were recorded.
Approval from the local ethics committee was obtained for the study.
CT examinations were performed with the Siemens CT scanner (SOMATOM Spirit).
CT images were obtained with helical scanner in accordance with clinical requirements at the cranial areas in slice thicknesses of 1-5 mm,
and axial or coronal planes without the use of contrast media.
All MR examinations were performed with 1.5 Tesla MR scanner (Infinion; Philips,
Cleveland,
USA) using 5 mm slice thickness.
The diagnosis was verified with the use of contrast media in patients with type 1 neurofibromatosis (NF) and in the patient examining for 6th cranial nerve paralysis.
MR venography was additionally performed in two patients seeking for the cause of papilledema.
Images were assessed within the imaging criteria as previously described by Welker et al.
(1).
The affected regions of the bone defined via CT and MR findings were noted (see Table 1).
Sites of involvement (n=6) |
Frequency |
Basisphenoid bone |
4/6 |
Pterygoid processes |
4/6 |
Multiple contiguous sites |
4/6 |
Petrous temporal apex |
2/6 |
Table 1.
Sites of involvement of arrested skull base pneumatization.