[Conventional roentgen diagnosis of the temporal bone. A historical review].

The Viennese Medical School played an important role in the development of radiological examinations and signs of the temporal bone with conventional X-rays. Famous pioneers include E.G.

[Sudeck's disease--MRT as a new diagnostic procedure].

In this prospective study, we determined the value of MR as an imaging technique in diagnosis and therapy with the option of simultaneous assessment of bone and soft tissue. 20 patients with clinical diagnosis of reflex sympathetic dystrophy syndrome (RSDS) and positive results in radiogram and three-phase radionuclide bone scanning were examined by MR, using T1- and T2-weighted images before and after Gadolinium-DTPA i.v.

[Radiodiagnosis of temporal bone anomalies].

The X-ray findings in temporal bone anomalies are reviewed. Radiological procedure and examination technique are presented, as are symptoms of important anomalies. The methods available are plain film X-ray of temporal bone, multi-directional tomography, and high-resolution CT.

[Digital dacryocystography].

The technique of conventional dacryocystography has recently been improved and extended by utilizing new technological developments. Digital dacryocystography, performed with computer-controlled X-ray equipment with a C-arc, and coupled to an image intensifier-TV system, enables the passage of the contrast medium to be observed, the image to be enlarged to any desired size, and also offers the advantages of digital subtraction angiography. A great deal of diagnostic information is thus obtained, making precise localization of stenoses of the lacrimal pathways possible.

[Occult fractures of the skull].

Fractures of the skull represent a problem in traumatologic X-ray-diagnosis. The higher rate of errors in the skull compared with the rest of the skeleton result from problems in differentiation of fracture-lines from vascular channels and impressions in overlying skeletal structures. By special examination of the suspected region (special X-ray-views, conventional tomography, CT, magnification views etc.

[Computerized tomography in middle ear diagnosis--a comparison with conventional methods].

Due to important improvement in detail resolution and the excellent contrast resolution, in the newest computed tomography (CT) units, normal and pathologic structures of the inner and middle ear can be visualized. The clinical value of CT in comparison to standard X-rays and tomography is prospectively evaluated on the basis of 50 patient examinations. Today CT is unsurpassed in the diagnosis of cholesteatomas and glomus tumors and is superior to all other imaging techniques.

[Radiological contribution to skeletal changes in systemic mastocytosis. Urticaria pigmentosa].

Three patients are demonstrated suffering from systemic mastocytosis with skin and skeletal involvement. History, clinical and radiological results are reported. After a brief analysis of the pathogenetic mechanism, the radiological findings on the skeletal system in systemic mastocytosis are discussed.

[Vesica fellea duplex (author's transl)].

The article reports on two cases of duplex formation of the gallbladder observed by the author during the past ten years in the Central Institute of Radiodiagnostics of Vienna University. Among the numerous malformations or variants of the gallbladder and biliary tract, such duplex formation represents a relatively rare occurrence.

[Computer tomography: physico-technical basis, indications and clinical application (author's transl)].

The increasing use of whole body computerized tomography in daily radiological routine work has revolutionized the diagnosis and treatment of several diseases. The clinical importance of computerized tomography (CT) is discussed on the basis of the first 1000 examined patients. While CT of the head is an already well-established method which surpasses all other diagnostic means as regards reliability and accuracy in the detection of space-occupying lesions, this cannot be stated for other parts of body.

[Contribution to x-ray diagnostics of tumors of the cerebellopontine angle (author's transl)].

A scrutiny of the palette of possibilities in the radiological examination for the discovery and identification of neurinomas of the auditory nerve, shows that, apart from plain roentgenography, which continues to occupy the first rank after clinical examination, computer tomography represents the most important contribution towards identifying tumors of the cerebellopontine angle. For the identification of neurinomas (of the Brunner type) of the medial type this method of examination is the method of choice. We are not so confident with regard to the small lateral neurinomas which are situated within the auditory meatus.

[A contribution to the differential diagnosis of odnotogeneous cysts].

Problems concernint the diagnosis and differential diagnosis of odontogenic cystic lesions of the jaw are discussed with reference to a series of patients and some specially selected cases. The use of isotope examination is often of particular significance in coming to a decision. The position and value of scintigraphy has been demonstrated by referring to the literature and to our own investigations.