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Biomedical subjects

N V Nudnov

Publications and source records attributed to N V Nudnov.

At least 19 recordsLinked to original sources
PubMed1993

[Invasive interventions with computerized tomography guidance].

Invasive interventions (diagnostic and therapeutic) were conducted on 125 patients. Fifty-six has diseases of the lungs, 16 of the mediastinum, 4 of the pleura, 17 of the liver, 2 of the pancreas, one of the spleen, 15 of the kidneys, 7 of the retroperineal space, two of the soft tissues, and 5 patients had diseases of the skeletal bones. Biopsy was combined with aspiration of the renal cyst content in 7 cases. The diagnostic value of biopsy under control of CT was 86% (106 cases); negative and pseudonegative results were recorded in 18 (14%) patients. The efficacy of biopsy is determined by such factors as the size of the lesion and the depth of its localization in the involved organ, the character of the pathological process and the region of its localization, the site from which the material is collected, and the needles used. Among 7 patients with therapeutic interventions, 5 had good and 2 had satisfactory immediate results. Complications were revealed in 4 (3.3%) patients, pneumothorax was encountered most frequently.

Adult↗
PubMed1993

[Errors and complications in computed tomography-guided biopsies].

The article analyses the results of 104 biopsies which were carried out in 84 patients with different diseases of the organs of thoracic (50) or abdominal (16) cavities, postperitoneal space (32), bones and soft tissues (6). Positive results were obtained in 67 cases, negative--in 26, false-negative--in 11. The specificity was 70.3%, sensitivity--100%, authenticity--64.4%. The authors make a conclusion that the results and authenticity of biopsies depend on such factors as the proper organ to be punctured, character and structure of the affection, its location, volume and spreading, as well as the type of needles to be used.

Adult↗
PubMed1992

[The potentials of computed tomography in the treatment of cysts and inflammatory diseases of the internal organs].

Computed tomography (CT) is used more and more often recently in the treatment of some surgical diseases of the internal organs. The subject of discussion in this work are the results of treatment of cysts and pyoinflammatory diseases of the internal organs. The work was conducted on CT IV generation "QUAD 1" of the CMS firm (England). Needles measuring 14-18d in diameter (Charrière scale) were used for aspiration. A total of 23 therapeutic interventions were performed in 19 patients with exudative pleurisy (1 patient), pleuritis (4), pulmonary abscesses (1), abscesses of the liver (1), abscesses of the subhepatic and subdiaphragmatic spaces (2), cysts of the liver (1) and kidneys (1 patient). Among the interventions 21 were aspirations and 2 drainage of the abscess. A mechanical syringe is used lately for more effective evacuation of the contents. The removed contents, ranging in volume from 10.0 to 600.0 ml, was subjected to cytological, biochemical, and bacteriological analysis. A single puncture is sufficient, as a rule, for aspiration of the cyst contents, one-stage aspiration from cysts of both kidneys may be conducted (as was the case in two of our patients). 96% alcohol was used as the sclerosing agent. In cases of small abscesses aspiration may be repeated for removal of the contents, irrigation of the cavity, and administration of antibiotics. In abscesses measuring more than 10 cm drainage is advisable. Control CT examination is conducted once a week. The condition of the cavity is appraised by combining CT with its contrast study. The immediate results were good and satisfactory in 17 (94.7%) patients.(ABSTRACT TRUNCATED AT 250 WORDS)

Abscess↗
PubMed1990

[Present-day diagnosis of pulmonary thromboembolism].

Main complains, clinical appearance of the disease and laboratory findings have been evaluated for 28 patients with pulmonary embolism and its complications. The diagnosis made at x-ray and computed tomography examination proved valid in 85% of cases confirming the efficiency of their combined use in this disease. The author believe a comprehensive approach promising in solving the problem of pulmonary embolism.

Acute Disease↗
PubMed1990

[Glomus tumor of the stomach].

A case of the stomach glomus tumour is described in a male of 67, with an asymptomatic clinical course. Results of the angiographic, computer-tomographic examination as well as morphological characteristics of the tumour are presented.

Aged↗
PubMed1990

[Diagnostic complexities of primary liver cancer in selecting patients for transplantation].

In examination of 23 patients with primary cancer of the liver, who were considered as the candidates for orthotopic liver transplantation, the authors established the necessity for performance of the complete clinico-laboratory-instrumental investigation with mandatory use of the ultrasound study, scintigraphy, computed tomography with target puncture biopsy of a hepatic neoplasm.

Adult↗
PubMed1990

[Computerized tomography in the diagnosis of degenerative-dystrophic lesions of the spine and herniated intervertebral disk].

Computed tomography (CT) examination was performed in 711 patients with various degenerative and dystrophic processes in the spine. The most numerous group (485 patients) included those with a posterior discal hernia associated in 54.3% of cases with other degenerative and dystrophic alterations in the vertebral column. The hernias were paramedial in 336 and central in 147 patients. In 98.4% of cases the lumbosacral portion was involved. The CT diagnosis was verified at surgery in 103 patients (21.3%) providing evidence for setting up the principal CT criteria of the hernia: deformity of the disk posterior margin in the form of its local prolapse, deformity of the epidural fat, presence of a soft tissue component, dislocation and deformity of the dural sac. It is established that CT is a safe and highly informative diagnostic procedure in discal hernias.

Adolescent↗
PubMed1989

[Value of computerized tomography methods in diagnosing various diseases of the spine and spinal cord].

The authors generalize their 3-year experience in the employment of computer tomography at a multiprofile hospital and determine the diagnostic possibilities of this method in the treatment of degenerative and dystrophic diseases, primary and secondary tumours as well as some diseases of the spinal cord. The methods of improving the diagnostic efficiency of CT are discussed, particularly the employment of additional contrasting methods (CT epidurography and CT myelography). The indications for the employment of CT have been determined and the optimal sequence of performing the traditional X-ray methods of investigation, CT, CT epidurography and CT myelography in the lesions of the spinal column and the spinal cord has been worked out.

Diagnosis, Differential↗
PubMed1987

[Diagnostic potentials of computed tomography in tumors of the thymus].

115 patients with different morphological thymus lesions, including 67 with thymoma have been examined on a computer tomograph "Somatom DR-2" ("Siemens", FRG). Characteristic features of hyperplasia and thymus cysts, as well as benign and malignant thymus tumours have been revealed by computer tomography (CT). Diagnostic value of CT in conditions of pneumomediastinum and CT employing an "amplification" technique in dynamic CT-scanning (angio-CT) in combination with puncture tumour biopsy under CT control are discussed. CT was found to have certain advantages over other diagnostic techniques: simplicity, safety, the value of the information obtained, possible shortening of the diagnostic period.

Biopsy, Needle↗
PubMed1985

[Percutaneous puncture of the pancreas controlled by computerized tomography].

The method of puncture biopsy under the control of computer tomography was used in 29 patients with diseases of the pancrease. Correct diagnosis was obtained in 27 patients. In 13 patients aimed biopsy was associated with the aspiration of cysts (in 7 patients) and drainage (in 6 patients). No complications of punctures of the pancreas under the control of computer tomography were noted.

Adult↗