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Dana Mihaela Turliuc, B. Dobrovăţ, A. I. Cucu, Ş. Turliuc, Daniela Trandafir and Claudia Florida Costea

Abstract

The trigeminal neuralgia caused by neurovascular compression is a neurosurgical pathology requiring the preoperative identification as exact as possible of the neurovascular conflict. In this case, neuroimaging is very useful, as it allows not only the determination of the neurovascular conflict of the trigeminal nerve, but also the correct indication of an adequate surgical approach.

Open access

Dana Mihaela Turliuc, A.I. Cucu, B. Dobrovăţ, Daniela Trandafir, Ş. Turliuc, Gabriela Florenţa Dumitrescu and Claudia Florida Costea

Abstract

The arachnoid cyst is a lesion commonly encountered in neurosurgery, especially in pediatric pathology. We are presenting the case of an adult patient with a suprasellar arachnoid cyst with giant perimesencephalic and mesial temporal extension discovered incidentally, where there is a discrepancy between the spectacular neuroimaging and the non-specific symptomatology. Some of the physiopathological mechanisms which led to the evolution of the cyst will also be presented.

Open access

Claudia Florida Costea, Dana Mihaela Turliuc, Anca Sava, Gabriela Florenţa Dumitrescu, A.I. Cucu, Emilia Patraşcanu, Daniela Trandafir and Ş. Turliuc

Abstract

Rightfully regarded as the father of German neurosurgery, Fedor Krause made a major contribution not only in world neurosurgery, but also in medicine. The aim of this paper is to highlight once more the significance and importance of Fedor Krause’s work and exceptional human quality.

Open access

Valentina Anechitei-Deacu, Alida Timar-Gabor, Daniela Constantin, Oana Trandafir-Antohi, Laura Del Valle, Joan J Fornós, Lluís Gómez-pujol and Ann G. Wintle

Abstract

SAR-OSL dating studies of Romanian, Serbian and Chinese loess using fine and coarse quartz have previously resulted in a series of controversial issues. We extend here the investigations using fine (4–11 μm) and different coarse quartz (>63 μm) grains extracted from aeolianites from a site on Eivissa Island (southwestern Mediterranean). Aeolianites were chosen since they contain quartz from a different geological context and have significantly lower environmental dose rates. The dose response curves of the OSL signals for fine and coarse quartz are similar to those for loess and are also represented by the sum of two saturating exponential functions. For doses up to ~200 Gy, the dose response curves of fine and coarse grains from aeolianites can be superimposed and the ages obtained for the different grain sizes are in agreement up to ~250 ka, increasing our confidence in the accuracy of the ages obtained for samples with such doses, irrespective of the magnitude of the environmental dose rate.

Particularly for the fine quartz fraction, a mismatch between the SAR dose response curve and the dose response curve obtained when doses are added to the natural is reported, indicating that the application of the SAR protocol in the high dose range is problematic. This dose dependent deviation is much less pronounced for coarse grains. Thus, it seems reasonable to infer that the dose response curves for the coarse grains, although saturating earlier can be regarded as more reliable for equivalent dose calculation than those for the fine grains.