[Anterolateral fibrous impingement of the ankle. Report of 14 cases].

Purpose: Anterolateral fibrous impingement of the ankle is one of the causes of post-traumatic pain in the foot. We investigated the comparative accuracy of US and MRI in this condition.

Material And Methods: Fourteen patients were submitted to arthroscopy, plain radiography, US and MRI of the foot.

CT in vascular pathologies.

Since the introduction of helical scanners, CT angiography (CTA) has achieved an essential role in many vascular applications that were previously managed with conventional angiography. The performance of CTA is based on the accurate selection of collimation width, pitch, reconstruction spacing and scan delay, which must be modulated on the basis of the clinical issue. However, the major improvement of CT has been provided by the recent implementation of many post-processing techniques, such as multiplanar reformatting, shaded surface display, maximum intensity projections, 3D perspectives of surface and volume rendering, which simulate virtual intravascular endoscopy.

Combined transcatheter arterial chemoembolization and percutaneous ethanol injection for the treatment of large hepatocellular carcinoma: local therapeutic effect and long-term survival rate.

The aim of our study was to investigate local therapeutic effects and long-term results of combined transcatheter arterial chemoembolization (TACE) and percutaneous ethanol injection (PEI) in the treatment of large hepatocellular carcinoma (HCC). Eight-six patients (67 males and 19 females, age range 48-75 years, mean age 65.1 years) with Child-Pugh class A (n = 48) or B (n = 38) liver cirrhosis and a large HCC (main tumor 3.

Proton magnetic resonance spectroscopy in an Italian family with spinocerebellar ataxia type 1.

Linkage and DNA analysis, magnetic resonance (MR) imaging, and single-voxel proton MR spectroscopy were obtained in 10 members of an Italian kindred with spinocerebellar ataxia type 1 (SCA1). The size of the basis pontis, cerebellar hemispheres, middle cerebellar peduncles, and medulla oblongata were decreased in 4 members carrying the SCA1 gene, compared with 6 unaffected subjects. Diffuse signal changes in the pons and cerebellum were observed only in the carrier with the longest disease duration and greatest disability.

[Osteochondral lesions of the humeral head: the usefulness of echographic study].

Purpose: In the cranial humeral end, osteochondral injuries localize in a circular crown including part of the humeral head and part of the major and minor tuberosities. Since this region is easy to depict with US, we investigated the potentials of this technique in detecting osteochondral injuries.

Materials And Methods: Seventy-five osteochondral injuries found at 492 US examinations performed in 12 months with a 7.

Spontaneous epidural emphysema and pneumomediastinum during an asthmatic attack in a child.

CT revealed the presence of epidural emphysema as an incidental finding in a 13-year-old boy in whom mild infrequent coughing during an asthmatic attack resulted in a pneumomediastinum and subcutaneous emphysema. Epidural emphysema was not associated with neurological symptoms. The CT images demonstrated the pathway of air leakage from the posterior mediastinum through the intervertebral foramina into the epidural space.

[Doppler color US in the diagnosis and treatment of iatrogenic pseudoaneurysms].

Pulsatile masses occur increasingly as a complication of transfemoral or transaxillary percutaneous catheterization, as the number of catheterization procedures and their complexity has increased. These iatrogenic injuries may be represented by a pseudoaneurysm or by a periarterial hematoma with transmitted arterial pulsation: the 2 vascular injuries require prompt differentiation because pseudoaneurysms need treatment by means of US-guided compression or surgical repair. Nineteen patients (10 men and 9 women, aged 40-85 years, mean: 62 years) with a groin (no.

[The correct mammographic exam: the usefulness of additional views].

Introduction: Till 20 years ago, physical examination of the breast was the fundamental procedure for the diagnosis of breast conditions, but mammography has now become the only examination to diagnose infraclinical carcinoma. High quality mammographic images enhance the radiologist's skill.

Material And Methods: We performed 2713 mammograms in a year's work and then selected 456 patients with questionable or poor mammographic findings (craniocaudal or midlateral oblique views) for further studies.

Color flow Doppler sonography rapidly differentiates type I and type II amiodarone-induced thyrotoxicosis.

Amiodarone-induced thyrotoxicosis (AIT) occurs both in abnormal thyroid glands (nodular goiter, latent Graves' disease) (type I AIT) or in apparently normal thyroid glands (type II AIT). Differentiation of the two forms is crucial, because type I AIT responds well to methimazole and potassium perchlorate combined treatment, whereas type II AIT is effectively managed by glucocorticoids. Differential diagnosis is often difficult, although thyroid radioactive iodine uptake is usually low-to-normal in type I and low-suppressed in type II, and serum interleukin-6 levels are normal/slightly elevated in type I, markedly elevated in type II.

[Percutaneous alcohol administration for hepatocarcinoma: long-term results].

We investigated the long-term outcome of percutaneous ethanol injection (PEI) in the treatment of hepatocellular carcinoma (HCC). A series of 184 HCC patients received PEI as the sole anticancer treatment over an 8-year period, December, 1987, to December, 1995. Ninety-four patients had a single tumor < or = 3 cm, 50 patients had a single lesion of 3.

[Diagnostic imaging and interventional therapy in hepatocarcinoma. Multicenter study of 290 cases].

We report the results of a multicenter study on the diagnosis and interventional therapy of hepatocellular carcinoma (HCC). The first aim--diagnosis--was to evaluate the sensitivity of 4 imaging techniques, namely ultrasonography (US), Computed Tomography (CT), digital arteriography (DSA) and Lipiodol CT (LCT), in HCC detection. The accuracy of these techniques was also investigated in tumor staging, which is important for treatment planning.

[Combined treatment of hepatocarcinoma with chemoembolization and alcohol administration. Long-term results].

We investigated the long-term outcome of combined transcatheter arterial chemoembolization (TACE) and percutaneous ethanol injection (PEI) for the treatment of hepatocellular carcinoma (HCC). A series of 86 patients with biopsy-proved HCC were treated at our Institution January, 1991, to June, 1996. All patients had a single primary tumor bigger than 3 cm, occurring solitary or associated with no more than 2 daughter nodules.

Prediction of pathological tumor volume in clinically localized prostate cancer: value of endorectal coil magnetic resonance imaging.

The purpose of this study was to determine whether endorectal coil magnetic resonance imaging (MRI) enables accurate assessment of pathologic tumor volume in patients with clinically localized prostate carcinoma. Twenty-four patients with biopsy-proved prostate carcinoma underwent MRI at 0.5 T before radical prostatectomy.

Intrahepatic metastatic nodules of hepatocellular carcinoma detected at lipiodol-CT: imaging-pathologic correlation.

Background: The purpose of this study was to determine whether tiny (< 2 cm) areas of iodized-oil retention diagnosed as intrahepatic metastatic nodules of hepatocellular carcinoma (HCC) at computed tomography (CT) following intraarterial injection of Lipiodol (Lipiodol-CT) correlate with truly cancerous foci on the corresponding sectioned pathologic specimens.

Methods: Thirty-two consecutive patients with biopsy-proven HCC (26 men and six women, aged 41-72 years) underwent prospective evaluation with Lipiodol-CT before undergoing surgery (hepatic resection, 30 patients; liver transplantation, two patients). Imaging findings were correlated with intraoperative and pathologic findings.

Identification of the feeding arteries of spinal vascular lesions via phase-contrast MR angiography with three-dimensional acquisition and phase display.

Purpose: To determine whether identification of the feeding arteries of spinal vascular lesions with phase-contrast MR angiography benefits from the higher spatial resolution of three-dimensional (volume) acquisitions and flow-direction information provided by the phase reconstruction of two-dimensional acquisitions.

Methods: Fifteen patients with high- or low-flow spinal vascular lesions proved by spinal arteriography underwent MR angiography with phase-contrast techniques. Arteriographic and MR angiographic studies were reviewed to identify the arterial feeders of spinal vascular lesions.

Comparison of the diagnostic performance of high-frequency ultrasound as a first- or second-line diagnostic tool in non-palpable lesions of the breast.

To compare the diagnostic performance of high-frequency ultrasound (HFU) as a first- or second-line diagnostic tool in non-palpable lesions (NPL) of the breast and to define the place of HFU in the diagnostic process, 89 women with this kind of lesion, previously detected by mammography, underwent HFU with 7.5-13 MHz transducers. The examinations were performed by two equally experienced operators of which only one (operator I) was aware of the mammographic findings.

Differentiation of hepatocellular adenoma and focal nodular hyperplasia of the liver: comparison of power Doppler imaging and conventional color Doppler sonography.

The aim of our study was to compare the diagnostic efficacy of power Doppler imaging and conventional color Doppler sonography for differentiating between hepatocellular adenoma (HCA) and focal nodular hyperplasia (FNH) of the liver. Thirty-one focal liver lesions (in 29 patients) with histologic proof of HCA (n = 9) or FNH (n = 22) were studied with power and color Doppler sonography according to a standardized examination protocol. The size of the lesions ranged between 1.

Ex-vivo MR imaging of liver intracellular contrast agents.

The objective is to evaluate whether an ex-vivo model can be used to test intracellular contrast agents for MR imaging of the liver. T1 weighted inversion recovery, proton density spin echo and T2* weighted gradient echo images of the liver were acquired at 0.5 T in 10 rats before and 30 min after intravenous injection of 0.

Long-term results of percutaneous ethanol injection therapy for hepatocellular carcinoma in cirrhosis: a European experience.

The objective of our work was to evaluate the long-term results of percutaneous ethanol injection (PEI) for the treatment of hepatocellular carcinoma (HCC) in patients with liver cirrhosis. A total of 184 cirrhotic patients with HCC underwent PEI as the only anticancer treatment over an 8-year period. Patients were followed after therapy by means of clinical examinations, laboratory tests, and US and CT studies performed at regular time intervals.

Usefulness of echo-color Doppler in differentiating parathyroid lesions from other cervical masses.

The aim of our study was to clarify possible differential color Doppler US features between parathyroid lesions and other cervical masses. A total of 56 parathyroid lesions in 54 patients with primary hyperparathyroidism were preoperatively examined with color Doppler sonography. Color Doppler flow patterns were compared with those of 72 thyroid nodules and 20 cervical lymph nodes.

[Comparison of computerized tomography and magnetic resonance in the assessment of benign and malignant pleural diseases].

To compare the diagnostic capabilities of Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) in differentiating benign from malignant pleural disease, we examined with MRI at 0.5 T forty-five patients with pleural lesions identified on CT scans. For 34 patients, a final diagnosis of malignant (n = 18) or benign (n = 16) disease was made.

Assessment of tumor vascularity in hepatocellular carcinoma: comparison of power Doppler US and color Doppler US.

Purpose: To compare power Doppler ultrasound (US) with conventional color Doppler US for the assessment of tumor vascularity in hepatocellular carcinoma (HCC).

Materials And Methods: Fifty-one patients with 88 histologically proved HCCs were examined with power and color Doppler US according to a standardized examination protocol. Findings at Doppler studies of each lesion were correlated with findings at digital subtraction angiography.

Peripheral ischemic occlusive arterial disease: comparison of color Doppler sonography and angiography.

We examined 334 legs in 167 consecutive patients with advanced peripheral ischemic disease using color Doppler sonography and angiography. Angiography revealed 714 lesions (369 nonsignificant stenoses, 297 significant stenoses, and 48 occlusions) in the 334 legs examined. Overall, color Doppler sonography revealed diagnostic agreement with angiography in 668 of 714 lesions (93.