Evaluation of 10 Cone-beam Computed Tomographic Devices for Endodontic Assessment of Fine Anatomic Structures.

Introduction: The purpose of this study was to classify 10 cone-beam computed tomographic (CBCT) devices using a ranking model according to the detection of fine endodontic structures.

Methods: A dedicated dentate anthropomorphic phantom was scanned 2 times using 10 CBCT devices without any metal (metal-free condition) and with an endodontically treated tooth containing a metallic post (metal condition). A reference image acquired on an industrial micro-CT scanner was used to register all CBCT images, yielding corresponding anatomic slices.

A study of cranial computer tomograms in very early and early onset schizophrenia.

The cranial computer-assisted tomograms of 19 patients suffering from schizophrenic psychoses with onset by age of 14 were examined. The emphasis was on the extent of the inner liquor spaces. Compared to healthy controls, at the beginning of illness a significant enlargement was revealed only in the patient group with very early onset schizophrenia (VEOS, onset prior to the age of 12), whereas children with early onset (EOS, 12 to 14 years of age) showed no significant brain pathology.

[Modern neuroradiologic diagnosis and interventional strategies for the ENT physician].

The value of imaging and interventional neuroradiological methods in ENT is surveyed. The role of CT and MRI is discussed in the diagnosis of various diseases. CT remains the method of choice in inflammatory paranasal sinus disease and in craniofacial trauma, whereas MRI has become the preferred imaging technique in patients with sensorineural hearing loss.

Spinal leptomeningeal neoplastic disease. Evaluation by MR, myelography and CT myelography.

Out of 16 patients, spinal leptomeningeal neoplastic disease was diagnosed by MRI in 4 patients, myelography in 14 patients and CT myelography in 12 cases. MR was superior to myelography in 2 patients, in another 2 patients MRI was equally diagnostic. The cerebrospinal fluid of every patient contained malignant cells.