Proton magnetic resonance spectroscopy and apparent diffusion coefficient in evaluation of solid brain lesions.

Background/aim: Advanced magnetic resonance techniques can provide insight in physiological changes within pathological canges and contribute to better distinquishing between different tumor types and their discrimination from non-neoplastic lesions. The aim of this study was to evaluate the role of proton magnetic resonance spectroscopy (1H-MRS) and apparent diffusion coefficients (ADC) in distinguishing intracranial glial tumors from tumor like nonneoplastic lesions, as well as for differentiating high- from low-grade gliomas.

Methods: This retrospective study included 47 patients with solid brain lesions (25 nonneoplastic, 14 low-grade and 8 anaplastic glial tumors).

Intracranial yolk sac tumor in an adult patient: MRI, diffusion-weighted imaging and 1H MR spectroscopy features.

Introduction: Yolk sac tumors represent only 5%-7% of intracranial germ cell tumors, which comprise about 1% of all primary brain tumors in adults. Literature data about nonspecific imaging characteristics of these tumors are scant. We presented magnetic resonance imaging findings with diffusion-weighted imaging and proton magnetic resonance spectroscopy of this rare type of tumor in an adult patient.

[The effect of antiaggregational therapy on the long-term patency of the femoropopliteal/crural bypass].

Introduction: Antiaggregational therapy can reduce thrombosis development following the arterial reconstruction surgery. In most cases acetylsalicylic acid and ticlopidine are used as antiaggregational agents.

Objective: The aim of this research was to examine the influence of different antiaggregational agents on a long-term femoropopliteal/crural bypass patency.