CT Temporal Bone Anatomical Variations

Assiut University

Status: Not yet enrolling

Conditions: Temporal Bone Abnormalities

Treatments: Radiation: CT

Study type: Observational

Funder types: Other

Identifiers

NCT06597877

CT Temporal bone variations

Details and patient eligibility

About

This study aimed to identify the prevalence of normal variations of temporal bone anatomy on high-resolution CT imaging and discuss their clinical importance

Full description

The temporal bone has a difficult anatomical structure for otologists and radiologists.In addition to its anatomical complexity, variations in the three-dimensional relationships of structures within the temporal bone need additional attention. The assessment of these relationships is of primary importance in diagnosis, treatment planning, and preoperative management. High-resolution computed tomography (CT) helps locate the anatomical structures within the temporal bone. Preoperative knowledge of the courses of vascular structures within and neighboring the temporal bone is of primary importance. If not detected preoperatively, variations in the localizations of the vascular structures may lead to disastrous consequences during surgery. The surgically important positions of the vascular structures that are generally accepted as normal variants are, High-resolution CT has made it possible for clinicians to study middle- and inner-ear pathology before undertaking surgery. This is particularly useful when the disease has altered the anatomy, resulting in complications such as a lateral canal fistula and facial canal or tegmen erosion there have been several studies reporting the value of high-resolution CT for investigations of cholesteatoma, temporal bone tumors, and congenital anomalies studies on the prevalence of normal anatomical variations of the temporal bone as the use of high-resolution CT imaging for temporal bone investigations is now widespread, it is necessary for the investigating otologist to be aware of common anatomical variations and their clinical implications

Enrollment: 100 estimated patients

Sex: All

Ages: 12+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• All adult patients presented with any middle ear pathology indicated for temporal bone radiological evaluation and were willing to participate in the study

Exclusion criteria

• 1- patients with temporal bone neoplastic disorders distorting normal temporal bone anatomy.

2- Extensive trauma to the temporal bone 3- Patients with congenital anomalies and craniofacial disproportions 4- Patients with mastoid surgery 5- Patients in whom radiological evaluation is contraindicated