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C Zuiani

Publications and source records attributed to C Zuiani.

14 recordsLinked to original sources
PubMed1989

Ultrasonography in oncology. A review.

The applications of ultrasonography (US) in oncology have rapidly increased during the past few years. Technical improvements, development of new technologies, easy availability, and non-invasiveness are some of the reasons for the rapid diffusion of US. Nowadays a large number of malignancies, both superficial and deep-seated, can be examined by US. In order to give an overview of the present role of US in oncology it is necessary to discuss many different topics including tissue characterization, diagnostic role, staging, follow-up and future developments.

Humans↗
PubMed1989

[High-risk focal breast lesions in echography and mammography].

Proliferative breast diseases include a group of lesions which occupy an intermediate position between benign and malignant lesions and are extremely likely to develop into carcinomas. The authors studied 81 patients who had been surgically biopsied on the basis of mammographic and/or US findings. In 33/81 (40.7%) of them proliferative lesions were diagnosed at histology. Mammography was able to identify 18/33 lesions (54.5%) versus US 26/33 (81.8%). On the basis of these findings, a group of patients at risk for cancer could be identified. As a matter of fact, proliferative lesions, especially those presenting with atypical hyperplasia, are associated with a higher risk of developing into carcinomas than those presenting with typical features. For these patients, the authors suggest more frequent clinical and instrumental screening.

Adult↗
PubMed1988

[Dynamic ultrasonic hysteroscopy].

An attempt was made to establish Dynamic Echohysteroscopy (DEHS) diagnostic criteria for the study of female genital apparatus, as recently proposed. DEHS consists of a pelvic ultrasonography during and following an injection of physiological solution in the uterine cavity. Since this technique does not use X-rays, it has been proven useful to study female infertility. The authors have studied the normal and pathological aspects of 33 patients who underwent both DEHS and hysterosalpingography (HSG) (comparison diagnostic test). The results lead to the following conclusions: 1) DEHS can be considered a useful alternative to HSG, in the evaluation of uterine pathology; 2) in the evaluation of tubal pathology, DEHS has fewer diagnostic possibilities than HSG. Nevertheless, DEHS indirectly allows the patency of at least one tube.

Adult↗
PubMed1988

[The role of computerized tomography in the diagnosis of postoperative intervertebral diskitis].

Six patients with diskitis following lumbar disk surgery were investigated by Computed Tomography (CT). Four patients underwent CT in a rather early phase of the disease (5-37 days after the onset of the symptoms): a posterior paravertebral fluid collection was always recognized, while the plain film was normal. Later on (2-4 months), the classical signs of diskitis were evident, with both CT and the plain film. The collection was always present at CT. A reintervention, performed on 3 patients, revealed the purulent content of the collections. It seems reasonable to suggest a relationship between the collection and the subsequent diskitis; the collection is probably an early sign of the disease. Its detection is of great value, because it could allow an immediate and adequate therapy. The authors stress the usefulness of performing CT in an early phase on this kind of symptomatic patients.

Adult↗
PubMed1987

[Instrumental diagnosis of non-glandular superficial inflammation].

The study of soft tissues has greatly improved since the introduction of ultrasonography (US) and computed tomography (CT). In order to define the role of instrumental investigations, 51 patients affected by non glandular superficial soft tissue masses underwent US and 9 were also examined with CT. US proved to be accurate to define the size, the structure of the mass (93%), the benign or malignant nature (91%). US was also useful for percutaneous biopsy. However, US cannot be considered the only investigation because it does not give enough data about bony and articular structures: a conventional X-ray film must be performed in order to define the relation of the mass with the adjacent bone and to clarify the possible presence of fatty tissue in a solid mass shown at US. CT has a role in case of large masses, surrounding a bone diaphysis, when the malignant nature is suspected and to define the relationship with vessels and muscles.

Abscess↗
PubMed1986

[3-dimensional craniofacial computerized tomography].

Computed tomography allows today to reconstruct three-dimensional (3D) images from axial scans. The authors report their experience in cranio-facial pathology achieved in two Departments of Radiology (University of Trieste, Italy and University of Stanford, California). 3D images have been realized using two different softwares, one of which allows to reconstruct both soft tissue and bone structures. The applications in maxillo-facial traumas, cranio-facial malformations and head tumours are discussed. 3D images turned out to be very useful for the optimal visualization and for the spatial demonstration of the lesion and have potential applications in cranio-facial surgery and radiotherapy.

Facial Bones↗
PubMedDate not supplied

[Ultrasonography and computerized tomography in the diagnosis of renal metastasis].

The US and CT findings of renal metastases are described in a series of 26 patients. US findings were round or oval masses ranging in diameter from 1.5 cm to 8 cm (mean: 4.2 cm); in only 21.2% of cases lesion diameters were less than or equal to 3 cm. In most patients (84.8%) the metastatic lesions were hypo-isoechoic, while in the extant cases they were either mildly hyperechoic or inhomogeneous. CT findings were round masses with variable diameters (1 cm to 8 cm; mean: 2.7 cm); in most cases (86.4%) lesions diameters were less than or equal to 3 cm. The latter finding was in significant disagreement with US results. CT densities were within the soft-tissue range, and always hypodense if compared to normal renal parenchyma in contrast-enhanced scans. Few cases of perirenal metastases were observed. US sensitivity was only 57%, much lower than that of CT; the latter method yielded no false negatives. CT showed metastatic lesions in patients with normal US findings; in 2 cases a greater number of lesions was detected with CT than with US. Our results are in substantial agreement with literature data, as far as US and CT findings are concerned; however, a lower incidence of bilateral cases was observed in our series than in previous reports. Our results support the primary role of CT in the detection of renal metastases thanks to its high sensitivity and to its allowing the simultaneous evaluation of other organs.

Humans↗
PubMedDate not supplied

[Ultrasonic-guided fine-needle biopsy of osteolytic lesions].

Percutaneous biopsy of lytic lesions of the bone, in the past pertaining to orthopedic surgeons, has now become a part of interventional radiology. Fluoroscopic guidance has simplified its execution. US does not, under normal conditions, allow an accurate examination of the skeleton; on the other hand, when the bone tissue is replaced by soft tissue, US can easily demonstrate the presence of a tumefaction, caused by a lytic lesion, and determine its characteristics. Eleven patients with lytic lesions (recognized on plain film) underwent US. The lesions were demonstrated. In such cases, biopsy is essential to define their benign or malignant nature, in the latter case if primitive or metastatic, and their histology as well. US is a simple guide to the biopsy of noncorticalized lytic lesions, and it offers consistent advantages over fluoroscopic guidance--i.e. it is easier to perform, it requires no X-ray exposure, it provides with three-dimensional images, the guide is performed in real time, and a choice of the most appropriate (non-necrotic) areas is possible.

Biopsy, Needle↗