Reading Holidays are beautiful because I am much time to read. I have read "Great expetation of Charles Dickens and " Pride and Prejudice " of Jane Austin last month . Now I'm reading "The Little Prince".

An incredible story of Italki I met Lucy on Italki last year. She is from Australia. I taught her italian and she taught me english. We exchanged our cultures and we laughed a lot. Last month she left for Europe to travel. And now she is living in my home for two weeks. She is very nice and she is meeting all my family. She is visiting Rome with me and she is learning our tradition. I want to share with you my wonderful experience and I wanted you to know the power of the Internet. Say hello to my friend.

English language

I'm trying to improve my English.

I have started to watch movies with English language and English subtitles.

White Matter fibers Studying through Fiber Tracking in MRI 2 (PART 2) The component tissue of White Matter which is the principal responsible of the water molecules Anisotropic Diffusion is not the myelin, but the membrane cell. In case of alteration structure of axonal tracks the Anisotropic Value reduces. DWI technique has only a feeling for movement which has the same direction of the gradient. For this it represent a limit for Myelinated fibers study. Fiber Tracking is a technique for improving the graphic representation and interpretation of Brain Molecules Imaging Diffusion dates, through 3D reconstruction of Axonal Tracks’s Central Nervous System. Fiber Tracking brief two information’s type : - Quantitative Valuation of Anisotropic Grade - Axonal Fiber’s Spatial Orientation Fiber Tracking tries to identify with major clarity the structure of brain fibers. The fibers are obtained by following voxel to voxel ( with specific algorithm ) the major Diffusion of Water Molecules. Whole technique finishes with the overlapping of the 3D Axon tracks Technique and the MRI Morphological Images. Fiber Tracking can be obtained by following two methods: Deterministic Method and Stochastic Method. Deterministic Method permits to make good images also with low SNR because it has a small number of images weighted Diffusion. The elaboration time is short, permitting the methodic compatible with the clinical routine. This method is operator-dependent because the operator must has great anatomic knowledge. Instead Stochastic Method needs big number of images weighted Diffusion obtaining an accurate evaluation of the probability orientation of the fibers in the area. This methods is not operator-dependent but the elaboration time is long. In addition 3T MRI Scanners permit to obtain images with major spatial resolution ( thank to the higher SNR) e to make functional images. With 3T MRI scanners is possible to increase B-Value , permitting to study smaller axonal tracks or with windy ways. The role of Radiographer is important for positioning of the patient, acquisition and elaboration of the images. The Fiber Tracking is used for : - Encephalic pathology - Studying cerebral connectivity - Studying Cerebral Ischemia, Pathology of White Matter, Neurochirurgic Planning, Neurodegenerative Diseases. In conclusion major advantages of Fiber Tracking are about tumor resection . It permits to have minor invasivity , minor postoperative complications, major cost-benefit rapport during Intracranial Tumor Sugery.

White Matter fibers Studying through Fiber Tracking in MRI (PART 1) Magnetic Resonance Imaging (MRI) is an acquisition and reconstruction imaging technique that is used for medical purposes. In comparison to other diagnostic techniques, the MRI is one of the most versatile tools to use. It offers morphological, kinetic, functional, and biochemical information of different human body parts. MRI technique, takes advance from the reception and images. MRI’s signals generated will be different on the strength on particular surrounding where protons are. In addition, the big potentialities, the big possible research areas, and the lack of clinical contraindication, permitted on exponential progression of the methodology changing in a deep way the role of radiographer. In particular, Diffusion Tensor Imaging (DWI) and Fiber Tracking represent a new technique of Neuroimaging in the determination of microstructural brain demage. In 90’s was introduced the possibility of rebuild white matter’s axonal tracks though a technique: Fiber Tracking. The principle on which is based the major part of Fiber Tracking technique is about water molecules present in regions where axons are aligned along the same direction where molecules are parallel to the axons diffuse in a faster way. The fiber tracking represents the only non-invasively technique to identify the axon tracks in the white matter. They do not only evaluate the entity of diffusion phenomenal, they also represent the direction of the diffusion. This technique is mainly applied to the white matter of brain which is organized in the fiber axon. When the diffusion does not happen in all the directions, but along one preferentially direction it is defined “Anisotropic”. The fibrillar structure of the white matter made of axonal tracks induce the water molecules diffusion aligned to be parallel to them.

what happened today Today I worked and now I'm studying English. I am very tired.