Other researchers, however

Other researchers, however, consider, that this method should be applied only at patients at whom the clinical semiology and-or other diagnostic methods prove or do highly probable existence process diffusions. With a pneumoencephalography toradol often combine research that is especially useful at definition of the sizes adenomas which can co-exist with a syndrome of an "empty" Turkish saddle [132]. Introduction of contrast agents () instead of air allows to receive the fine image areas and consequently it is rather useful for definition of the sizes of a tumour [133]. This method causes, apparently, a little less serious by-effects, than . Angiography of carotids. The bilateral angiography of carotids assists at degree definition and diffusions of a tumour of a pituitary body , shift or a prelum of forward cerebral arteries or their branches besides, allows to see.
This method allows to receive useful data at the preoperative analysis of possibilities of unexpected detection of anatomic features of a cavernous part of carotids. Besides, only with its help it is possible to establish before operation the diagnosis aneurysms of a carotid which can cause expansion and erosion of a Turkish saddle and by that to serve as the reason of the erroneous diagnosis Computer tomography. Working out of computer tomography (Kt-skanprovanie) has changed diagnostic actions at set of kinds intracranial (and extracranial) pathologies and has allowed to replace invasive methods, for example an arteriography and a pneumoencephalography, with the non-invasive. Use of the contrast agents entered intravenously or immediately in [133], has even more raised accuracy of Kt-scanning. Area of a Turkish saddle and space to see by means of this method it is more difficult, though newer designs of devices possess larger resolving power. Special advantage Kt-scanning brings at the analysis of a para-and diffusions of tumours of a pituitary body, and also at definition in a Turkish saddle (a syndrome of an "empty" Turkish saddle). Definitive value of this method should be estimated on that, how much baclofen the information received with its help, allows to avoid necessity of a preoperative angiography and-or a pneumoencephalography. Nejrooftalmologichesky researches Fields of vision. The research of fields of vision made at bed of the patient, serves as useful primary diagnostic procedure. However because of often absent possibility to establish by means of this method small deviations from norm all patients with suspicion on disturbances should pass formal check of fields of vision by means of perimetre. At use of test-objects of the various size and the colour, projected on the spherical device (Goldman's perimetre), it is possible to receive a reliable estimation both central, and peripheric fields of vision. Reproducibility and sensitivity of this method does its extremely useful to consecutive observation over patients ( 7-13). Though the prelum of a visual decussation with bitemporal defects of fields of vision is a characteristic symptom at tumours of a pituitary body with diffusion, it does not serve neither specific, nor a unique sign of similar tumours. Bitemporal defects of fields of vision, except pituitary body tumours, can meet at tumours, vascular disturbances, the demyelination centres in a visual decussation, focal (sectoral) a retinitis, slip - an arachnoiditis, sarcoidosis , radiation injuries of a decussation and sometimes at it in a saddle in a combination to a syndrome of an "empty" Turkish saddle. In the same way at the patient at whom the visual decussation is fixed in front () or behind ("postbracing"), fields of vision can change basically in one eye (optic nerve) or can change only one field of vision (a visual tract). At last, some patients have atypical defects of fields of vision (azygomorphous or even characteristic for a prelum in front) which disappear after excision of tumours of a pituitary body. The caused visual answer. Recently developed technique of registration of the caused visual answer (), applied to research of a pathology of visual ways, regard now as more sensitive for revealing of precursory symptoms of a prelum tumours ( 7-13 see). characterises the form and the latent period of the electric answer of the occipital cortex caused by a photostimulation of an eye. It is possible to estimate selectively a condition of sites of separate fields and to differentiate influence on crossing and not crossing fibers. At pressure on in the first it is possible to observe later and-or weak answer, than in the second. Reliability and sensitivity of a method of registration along with smaller fatigability of the observer which at visual check of fields of vision is sometimes great enough, can make application of this method rather expedient. Other researches hormones are present in , and is shown, that their level in it in norm lower, than in peripheric blood, at patients with tumours of a pituitary body with diffusion (but not at completely tumour localisations) raises [134, 135] irrespective of, the tumour functions or not.