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T S Pustovitova

Publications and source records attributed to T S Pustovitova.

12 recordsLinked to original sources
PubMed1989

[Clinical use of magnetic resonance tomography in the assessment of vital organs in malignant arterial hypertension].

Magnetic resonance tomography was performed to examine the kidneys, brain, adrenals, vessels, and heart in 110 patients with malignant arterial hypertension (MAH). The findings were compared with those of the examination of healthy subjects and patients with benign hypertensive disease (BHD). As compared to the controls, all the MAH patients had changes in the target organs, however, their nature and magnitude varied with under underlying MAH disease. Renal alterations were most profound in chronic glomerulonephritis. All the patients displayed signs of concentrated cardiac hypertrophy: its maximum degree being noted in renovascular hypertension, the least, in MAH of adrenal genesis. Examination of the central nervous system in MAH patients revealed that the ventricular system and subdural space were dilated. It was shown that it was feasible to diagnose hypertrophic encephalopathy in the prehospital period by employing magnetic resonance tomography.

Adolescent↗
PubMed1989

[The diagnosis of tumors of the chromaffin tissue by magnetic resonance tomography].

To study the potentialities of MR tomography in the diagnosis of chromaffin tissue tumors and to elaborate a number of quantitative diagnostic criteria, 26 patients with pheochromocytoma were examined. All the patients were subjected to x-ray computer-aided tomography of the adrenals. In 24 of them, the diagnosis was completely confirmed on histological examination of the excised tumor. The control group consisted of 19 healthy persons. All the investigations were performed on a MR tomograph BMT-1100 manufactured by Brucker Company (FRG) (0.235 T) according to the SE technique, with TR being 2 s and TE 34 ms. The visual picture together with a number of quantitative parameters (the time of spin-spin relaxation--T2, the index of relative signal intensity) were appraised. The method is shown to be highly informative in the diagnosis of pheochromocytomas, particularly of extra-adrenal site. In addition to a more prolonged T2, the high values of the index of relative signal intensity appeared very suggestive, especially on the 3d and 4th echo images.

Adrenal Gland Neoplasms↗
PubMed1989

[Magnetic resonance tomography of the kidney and adrenal glands in normal subjects].

MR-tomography was used for the investigation of 38 healthy persons aged 17 to 48 with normal BP values without any renal and adrenal pathology (kidneys were investigated in 25 persons, adrenal glands--in 16). A BMT-1100 MR-tomograph (Brucker, FRG) was used for investigation. The authors stress noninvasiveness of the new method and its practical value. It permits the differentiation of the cortical and medullary substance of the kidney and in some cases of the adrenal glands. It also permits the evaluation of their shape, size and position. The authors also showed a possibility of assessing the status of these organs using some quantitative parameters. Due to its safety, high resolution and good imaging the method holds great promise.

Adolescent↗
PubMed1988

[Clinical use of magnetic resonance tomography for assessing adrenal function in patients with arterial hypertension].

99 patients with arterial hypertension (AH) were studied: 17 patients with pheochromocytoma, 37 with aldosteronoma, 4 with corticosteroma, 38 with essential hypertension. Control group included 16 healthy subjects. The investigation was performed by means of a NMR-tomograph BMT-1100 ("Brucker", FRG) in axial and frontal planes according to Spin Echo (SE) technique with TR = 2.0 s, TE = 34 ms. Qualitative (visual) as well as quantitative criteria for evaluation of adrenal glands state were developed. Normal size of adrenal glands, relative intensity of their signal and T2 were calculated. The data obtained proved that relative intensity of the signal is a highly informative parameter for differential diagnosis of adrenal gland tumors (its value of less than 1.0 is evidence of cortex lesion, and that of more than 1.4--of medulla lesion). High informative value of MR-tomography for evaluation of adrenal glands state in patients with AH is proved by comparative data obtained by other methods, such as computer tomography aortography and histomorphology.

Adrenal Cortex Neoplasms↗
PubMed1986

[Diagnostic possibilities of MR-tomography of the adrenals of patients with essential hypertension].

MR-tomography was employed for examination of 41 patients with arterial hypertension (AH). Aldosteroma was diagnosed in 11 patients, pheochromocytoma in 4 patients, paraganglioma in one patient. 25 patients with essential hypertension (EH) were entered into the comparison group and 16 healthy persons into the control group. Computerized tomography of the adrenals was performed in all the examinees. In MR-tomography normal adrenals were visualized as homogeneous formations of low intensity image surrounded by high intensity image of the retroperitoneal fat. In the patients with stage I-IIA EH adrenal shape and sizes did not differ from those in the control group. Certain enlargement and deformity of the adrenals were noted in the patients with stage IIB-III EH, especially in a malignant course of disease. Aldosteroma on MR-tomograms was visualized as an additional formation in the adrenal field, had a rounded or oval shape with regular clear contours; by intensity of image the tumor was similar to the liver. In the pheochromocytoma patients the tumor was also of a rounded shape, not always with clear borders, in one case with signs of the penetration in the vena cava inferior which was clearly visualized on the frontal sections. Paraganglioma found in one patients in the hilus of the left kidney, was of an oval shape with a high intensity signal, similar to that from the sympathetic chain. A study conducted in 3 reciprocally perpendicular planes clearly showed that the tumor adjoining the aorta was unconnected with the renal vessels.

Adrenal Gland Neoplasms↗
PubMedDate not supplied

[Magnetic resonance tomography of the adrenals in the diagnosis of total and partial hypercorticism].

The paper is devoted to the use of a new method of nuclear magnetic resonance tomography (MR tomography) in the diagnosis of diseases of the adrenal glands developing with the syndrome of total and partial hypercorticism. A MR tomograph with resistive magnet (0.234 T) was employed. Altogether 25 patients were examined (21 with Itsenko-Cushing disease of various degrees of severity, 2 patients with Itsenko-Cushing syndrome and 2 patients with aldosteronoma). MR tomography was shown to possess a high informative value permitting the assessment of a type of adrenal changes without irradiation of a patient. In combination with routine methods of examination (hormonal investigation, retropneumoperitoneum, x-ray computerized tomography) MR tomography makes it possible to improve considerably the diagnosis of Itsenko-Cushing disease and to specify tumor sizes and tumor growth type.

11-Hydroxycorticosteroids↗