Chiari malformasyonu Tip-I’de fossa cranii posterior morfometrisinin radyolojik olarak değerlendirilmesi

Alana Özgü Dillerin Nitel Olarak Değerlendirilmesi için bir Çerçeve

Posterior fossa decompression with duraplasty in Chiari-1 malformations.

OBJECTIVE To evaluate the symptomatic outcome after PFD (Posterior Fossa Decompression) with duraplasty in Chiari-1 malformations. STUDY DESIGN Case series. PLACE AND DURATION OF STUDY Department of Neurosurgery, JPMC, Karachi, from July 2008 to September 2012. METHODOLOGY This included 21 patients of Chiari 1 malformations admitted in department through OPD with clinical features of head...

3-D simulation of posterior fossa reduction in Chiari I.

We proposed a 3D model to evaluate the role of platybasia and clivus length in the development of Chiari I (CI). Using a computer aided design software, two DICOM files of a normal CT scan and MR were used to simulate different clivus lengths (CL) and also different basal angles (BA). The final posterior fossa volume (PFV) was obtained for each variation and the percentage of the volumetric cha...

Endolymphatic sac tumor of the left fossae termporalis and fossa cranii posterior: report of a rare case

Endolymphatic sac tumor (ELST) is a rare low-grade non-metastasizing adenocarcinoma of endolymphatic sac origin that arises in the petrous part of the temporal bone. Here we present a case of endolymphatic sac tumor of the head in a 53-year-old man who had symptoms in his left ear since 40 years ago after drowning and found a mass about 2 cm around his left ear 8 years ago, which grows slowly t...

Automated posterior cranial fossa volumetry by MRI: applications to Chiari malformation type I.

BACKGROUND AND PURPOSE Quantification of PCF volume and the degree of PCF crowdedness were found beneficial for differential diagnosis of tonsillar herniation and prediction of surgical outcome in CMI. However, lack of automated methods limits the clinical use of PCF volumetry. An atlas-based method for automated PCF segmentation tailored for CMI is presented. The method performance is assessed...