P. J. Vassilakos

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The present study investigated differences and associations between cortical perfusion, nigrostriatal dopamine pathway and neuropsychological functions in different stages of Parkinson’s disease (PD). We recruited 53 non-demented PD patients divided into four groups according to the Hoehn and Yahr (HY) staging system and 20 healthy controls who were used in(More)
UNLABELLED Parathyroid scintigraphy and high-resolution ultrasonography are frequently used as preoperative localization procedures in primary hyperparathyroidism. However, when thyroid disease coexists, their diagnostic accuracy is probably abated. DESIGN 56 patients with primary hyperparathyroidism were prospectively evaluated with parathyroid(More)
OBJECTIVES The objective of this study was to assess the ability of acute dimercaptosuccinic acid (DMSA) scintigraphy for revealing vesicoureteral reflux (VUR) in young children after a first febrile urinary tract infection (UTI). METHODS Children aged<or=24 months and were admitted with a first febrile UTI during a 5-year period were evaluated. The(More)
STUDY OBJECTIVE To determine the prevalence of high- and intermediate-risk type human papillomavirus (HPV) infection and cervical dysplasia in an urban Swiss adolescent population attending the local Adolescent Clinic, using a liquid-based Pap test combined with risk type HPV DNA testing. To determine the prevalence of Chlamydia trachomatis in the same(More)
UNLABELLED The efficacy of 99mTc-tetrofosmin for the detection of parathyroid lesions was investigated prospectively in patients with hyperparathyroidism referred for surgical treatment. METHODS Twenty-seven patients with primary and 18 with tertiary hyperparathyroidism were studied. Twelve patients had undergone one or more previous neck explorations.(More)
OBJECTIVES To estimate the usefulness of serum tumor markers' monitoring, as predictors of gastric cancer in patients with pernicious anemia. PATIENTS AND METHODS We investigated serum levels of carcinoembryonic antigen (CEA), alpha-fetal protein, cancer antigen (CA)-19.9, CA-125 and CA-15.3 in 50 patients with pernicious anemia and in 24 healthy(More)
In a prospective study, the DNA content of Feulgen-stained nuclei obtained from fresh samples of 211 colorectal adenocarcinomas was evaluated by means of image analysis. The DNA histogram classification took into account aneuploidy and S-phase fraction for diploid cases. No significant relationship was found between ploidy and sex, age, preoperative(More)
A case of idiopathic basal ganglia calcification in a 56-year-old woman with parkinsonism and cognitive impairment is described. The nigrostriatal dopaminergic pathway and regional cerebral blood flow were evaluated using dopamine transporter (DAT) brain single photon emission tomography combined with a low-dose x-ray computerized tomography transmission(More)
We evaluated the effectiveness of Re-186-HEDP in 25 patients with painful metastatic bone disease. Twenty-five patients with known prostatic (n = 19), non-small-cell lung cancer (n = 1) and breast cancer (n = 5) and multiple confirmed skeletal metastases were studied. All were taking analgesics daily (nonsteroidal antiinflammatory drugs/opiates).(More)