Search results for "ULTRASONOGRAPHY"
showing 10 items of 930 documents
Confounding factors of transvaginal ultrasound accuracy in endometrial cancer.
2020
Endometrial cancer is the most frequently diagnosed gynecological tumour. Transvaginal ultrasound has a leading role in the preoperative evaluation of endometrial cancer patients. The study aimed to identify factors that can worsen the diagnostic accuracy of transvaginal ultrasound in endometrial cancer patients. We retrospectively analysed 290 patients with histological diagnosis of endometrial adenocarcinoma. Two-dimensional (2D) gray-scale ultrasound and power Doppler imaging were performed. Age, menopause status, obesity, parity, Figo stage and benign uterine disorders were evaluated as possible factors worsening the diagnostic accuracy of the ultrasonography. FIGO stage IB was the main…
Primary gastrointestinal involvement in non-Hodgkin's lymphomas.
1987
This paper reviews primary gastrointestinal non-Hodgkin's lymphoma (GI-NHL). Every aspect of the topic is discussed though special attention is paid to histopathology and instrumental diagnosis as essential factors to stage the lymphoma and to determine an adequate therapy. Data from the most important works on the subject together with the results of our recent study of 40 primary GI-NHL are reported. Diverse findings by various authors are intentionally compared in a manner to present the work to the reader in the most critical way while trying to give an objective explanation of the different results on the basis of our own experience.
Vascular modifications within a choroidal osteoma
1993
We report a case of choroidal osteoma followed-up for 7 years. During this lapse of time the choroidal osteoma showed slight enlargement, development of subretinal hemorrhage and modifications of intratumoral vascularization. Some large intratumoral vessels visible at first examination disappeared at follow-up, while other vessels not observed before developed. The changes in the vascularization of the choroidal osteoma denote profound dynamics in the processes of osseous rearrangement of the tumor.
A novel L1CAM mutation in a fetus detected by prenatal diagnosis
2010
X-linked hydrocephalus is due to mutations in the L1 neuronal cell adhesion molecule (L1CAM) gene. L1 protein plays a key role in neurite outgrowth, axonal guidance, and pathfinding during the development of the nervous system. We report on a familial case diagnosed by prenatal ultrasonographic examination, with cerebellar hypoplasia, agenesis of the corpus callosum, and the bilateral overlapping of the second and third fingers of the hand. Sequencing of the L1CAM gene showed a novel missense mutation in exon 14: transition of a guanine to cytosine at position 1777 (c.1777G > C), which led to an amino acid change of alanine to proline at position 593 (Ala593Pro) in the sixth immunoglobulin …
Preoperative assessment of breast cancer: sonography versus MR imaging.
2002
The purposes of our study were to compare the diagnostic value of whole-breast sonography and MR imaging as adjunctive techniques to mammography and to determine whether MR imaging should be used routinely in the preoperative assessment of patients with suspected breast cancer.. One hundred four women (age range, 34-84 years; mean age, 60 years) with findings highly suggestive of malignancy in the breast were examined with mammography, sonography, and dynamic MR imaging before undergoing surgery. All visualized suspicious lesions were correlated histologically. The diagnostic relevance of sonographic and MR imaging findings was compared with the diagnostic value of the findings of clinical …
Is avoidance of surgery possible in patients with perimenopausal ovarian tumors using transvaginal ultrasound and duplex color Doppler sonography?
1993
A total of 108 cases of small perimenopausal ovarian tumors (largest diameter, less than 7 cm) were evaluated by transvaginal sonography and duplex color Doppler sonography; 101 had criteria for benignity and 7 for malignancy. All cysts were punctured and aspirated to avoid unnecessary surgery (benign cases) and establish the cytologic diagnosis as well as to avoid the risk of leakage (malignant cases). Recurrence rate of benign punctured cysts was 25% within 1 year of follow up. No difference in recurrent rate was seen between pre- and postmenopausal patients (19 of 56 cases in the premenopausal group, and five of 28 cases in the postmenopausal group). The larger the cyst, the greater the …
Imaging of sarcopenia.
2016
Sarcopenia is currently considered a geriatric syndrome increasing in older people. The consequences of sarcopenia – in terms of impaired mobility, limited self-sufficiency and disability – have been amply demonstrated, increasing the need to develop methods to identify muscle mass loss as early as possible. Although sarcopenia involves a reduction in both muscle mass and function, loss of muscle mass remains the essential criterion for diagnosing this condition in daily practice. Computed tomography and magnetic resonance imaging represent the gold standard for studying body composition, and can identify quantitative and qualitative changes in muscle mass. These techniques are costly, time…
Sympathetic Vasomotor Response of the Radial Artery in Patients With Diabetic Foot Syndrome
2003
OBJECTIVE—Neurophysiological assessment of the peripheral autonomic system is characterized by various limitations. An alternative approach to laser Doppler and venous plethymography is the assessment of the sympathetic vasomotor response of the radial artery obtained by continuous wave Doppler sonography. Nomogram data have been established and demonstrate the temporary disappearance of diastolic flow after coughing or deep inspiration. RESEARCH DESIGN AND METHODS—We assessed the sympathetic vasomotor response in 25 patients (mean age 64 years, range 43–76) with diabetic foot syndrome. The Doppler data were correlated with nerve conduction studies of the median and peroneal nerve, the exte…
Clinical and echographical control protocol of haemarthrosis in haemophilia patients with inhibitors: evaluation of the efficacy of recombinant facto…
2008
Summary. The intention of the ‘clinical and echographical protocol of evaluation the efficacy of recombinant activated factor VII in the haemarthrosis’ (EFFISEVEN protocol) was to provide an extensive study of the evolution of haemarthrosis, and second, of its repercussions on the degenerative process of joints. The clinical evaluation of haemarthroses and their evolution is based on a well-established methodology, although very few studies have sought to determine the correlation between pain, mobility and the objective data regarding the haemorrhage. We believe that it is necessary to unify criteria and that the EFFISEVEN protocol may contribute data that improve standards which, in turn…
Fetus acardius: two- and three-dimensional ultrasonographic diagnoses.
2001
Objective. To determine whether ultrasonographic detection of acardiac fetuses and diagnostic accuracy of related malformations improve with complementary use of two-dimensional ultrasonography, three-dimensional ultrasonography, and Doppler scanning. Methods. Three pregnant women with multifetal gestations who were found to have discordant fetuses on initial two-dimensional ultrasonographic scanning were subsequently scanned with three-dimensional ultrasonography and color Doppler ultrasonography. Results. Although the possibility of acardiac fetuses was entertained in all cases after two-dimensional ultrasonographic scanning, the diagnosis was confirmed, and the accuracy and extent of fet…