CT densitometry-based differential diagnosis between emphysematous and non-emphysematous lungs in elderly patients.

Purpose Methods and Materials Results Conclusion References Personal Information

Ruolo dell' HRCT nello studio del rimodellamento delle pareti delle vie aeree nell' asma.

THALAMIC PARCELLATION FOR TARGET IDENTIFICATION INTRANS-CRANIAL MR-GUIDED FOCUSED ULTRASOUND (TCMRGFUS)THALAMOTOMIES: A PRELIMINARY PROBABILISTC TRACTOGRAPHYSTUDY

Imaging of non-glandular superficial metastases: A comparison of xeroradiography, ultrasonography and computed tomography

Between January 1983 and July 1987, 1,622 cancer patients were evaluated to outline the possible applications and limits of various investigative techniques for evaluating metastases. Seventy-three cases with superficial metastases of the dermal-hypodermal (59) layers, of the muscles (11) and of other target organs (3) were included in the study. Although non-glandular superficial metastases are a relatively rare occurrence, diagnostic imaging techniques are indicated for evaluating their extent and anatomical connections. Secondary neoplasms were studied using the imaging techniques of sonography, computed tomography and xeroradiography. The diagnostic reliability of these three techniques…

Presacral Myelolipoma

Many reports have described adrenal myelolipomas but there have been only a few reports of extra-adrenal myelolipomas. We describe a 74-year-old woman who came to our observa- tion for MRI of the lumbar spine for typical lumbar back pain. In addition to signs of mild scoliosis and spondylo disc arthrosis, MR imaging revealed a presacral mass showing a heterogeneously high signal in all pulse sequences and almost completely suppressed on inversion recovery sequences for fat tissue. CT imaging confirmed the fatty nature of the lesion and no signs of bone involvement. These findings were most consistent with a diagnosis of a rare presacral myelolipoma as confirmed at histopathologic analysis. …

Analysis of signal-to-noise ratio for a 2-channels coil developed to enable transcranial Magnetic Resonance-guided Focused Ultrasound Surgery (tcMRgFUS) with 1.5 T MRI scanners

Thalamic parcellation for target identification in trans-cranial MR-guided Focused UltraSound (tcMRgFUS) thalamotomies: a preliminary probabilistc tractography study

Background: Trans-cranial MR-guided Focused UltraSound (tcMRgFUS) allows a neurofunctional exploration of thalamic nuclei to confirm and optimize the target before inducing a permanent brain lesion. However, the choice of the target is based on stereotactic coordinates that do not take into account the anatomical variability of each single patient. Thus, the optimization of the treatment target is based on the patient's feedback during lower power sonications. The aim of this work is to retrospectively evaluate the possible role of thalamic parcellation for the identification of the intermediate ventral nucleus (VIM) in patients undergoing tcMRgFUS. Materials and Methods: A 1.5T MR scanner …

Transcranial Magnetic Resonance-guided Focused Ultrasound Surgery (tcMRgFUS) at 1.5T: this is how we do it

Aims and objectives Methods and materials Results Conclusion Personal information References

Anatomical and clinical study on effects of sonography with pulse inversion and microbubble contrast in rabbit kidney

Whole-body diffusion weighted MR and FDG-PET/CT in Hodgkin lymphoma: predictive role before treatment and early assessment aftrer two courses of chemotheraphy

To evaluate whether whole-body MR has a predictive role before treatment and may asses the response after two courses of chemotherapy in comparison to FDG-PET/CT

MR imaging of pancreatic changes in patients with transfusion-dependent β-thalassemia major

OBJECTIVE. The aim of this study was to evaluate MR imaging changes of the pancreas in patients with transfusion-dependent β-thalassemia major. SUBJECTS AND METHODS. Twenty patients with transfusion-dependent β- thalassemia major were examined using MR imaging at 0.5 T, with spin-echo T1- weighted, fast spin-echo T2-weighted, and gradient-echo T2*-weighted sequences. Image analysis was performed to assess pancreas-to-fat signal intensity ratios for all pulse sequences. Pancreatic exocrine and endocrine function and serum ferritin levels were assessed. Twenty healthy volunteers underwent MR imaging with the same three sequences and served as a control group. RESULTS. The pancreas-to-fat sign…

Conservative treatment of initial breast cancer

The results of conservative surgical techniques (quadrantectomy or tumorectomy), axillary dissection and radiotherapy in 58 patients with initial breast cancer (Tt No, Mo) treated between June 1979 and December 1986 are reported. The disease-free survival rates after 5 and 8 years were 84% and 76% respectively. Four cases developed local recurrences (6.9%); 2 cases developed distant metastases involving lung and bone, and 1 case developed bone metastases without local recurrence. Two patients with local recurrence underwent radical life-saving mastectomy and are now free from disease.

Valori di densità TC nella diagnosi differenziale tra polmone senile ed enfisema

Assessment of large and small airways wall thickness by HRCT in asthma

Purpose Methods and Materials Results Conclusion References Personal Information

Ruolo dell’imaging di Risonanza Magnetica nella valutazione del controllo della risposta al trattamento radiochirurgico delle metastasi encefaliche

Bioeffects of ultrasound: an experimental study on human embryos.

Abstract The foetuses of 10 women at 9–12 weeks gestation were irradiated with ultrasound under typical diagnostic exposure conditions immediately prior to abortion. Electron microscopy of liver fragments revealed neither morphological nor structural changes.

Role of contrast-enhanced ultrasound in the characterization of incidentally discovered focal liver lesions

Resting state functional magnetic resonance imaging analysis of the brain of pathological gamblers

Purpose . Gambling disorder has been recently reclassified under the category ‘‘substance-related and addictive disorders”. Recent studies performed through functional MRI (fMRI) have shown that the perseverance of some behaviors can alter brain activation [1,2]. In this work we aim at investigating functional connectivity changes in pathological gamblers (PGs) in comparison to healthy controls (HCs) by means of resting state functional Magnetic Resonance Imaging (rs-fMRI). Methods and materials. Thirteen HCs and fourteen PGs were recruited (all right handed males; drugs free; mean age 36 ± 10 yrs). All acquisitions were performed through a 1,5 T MRI scanner using a 8-channels phased-array …

Acceptance of noninvasive computed tomography coronary angiography: for a patient-friendly medicine.

PURPOSE: This study was done to evaluate the psychological state and anxiety of patients undergoing computed tomography coronary angiography (CTCA), and assess their acceptance and satisfaction compared to invasive conventional coronary angiography (CCA). MATERIALS AND METHODS: A total of 442 consecutive patients (282 male; mean age 57.7 ± 9.5 years) who underwent CTCA for suspected or known coronary artery disease were evaluated with the Endler Multimodality Anxiety Scales (EMAS) before and after the scan, and a questionnaire administered after the scan. Among the 442 patients, 181 had a history of CCA. Two radiologists assessed the image quality of CTCA. RESULTS: Anxiety was more intense …