Anatomie comparée de l’oreille en scanner et des voies de l’audition en IRM chez le marsouin commun

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Automatic clustering for of MRI images, application on perfusion MRI of brain.

International audienceMany studies have been made in order to propose automatic diagnostic in medical fields. This paper proposes a new approach to deal with the problem of spectral clustering for signal extracted from brain MRI images. The tool-chain developed during this study can be easily implemented for the extraction and the analysis of information from perfusion MRI. We propose a reliable program which can easily isolate healthy from any pathological tissues. Experimental results are shown and discussed

“Bones in Silenz”: A new T1-weighted SILENZ sequence evaluating the bone in MRI

International audienceWe propose a new imaging technique, demonstrating the bones' edges using the Silent Scan's T1w FatSat sequence. An advanced post-processing coupled with the use of the zero echo-time imaging technology could lead to robust semi- or automatic segmentation. Such technique could guide and facilitate every surgery that needs bone measurements and valuable 3D appreciation or virtual guiding

Comparative anatomical study of sound production and reception systems in the common dolphin ( Delphinus delphis ) and the harbour porpoise ( Phocoena phocoena ) heads

International audienceMagnetic resonance imaging (MRI) and computed tomography (CT) scans were used to analyse, respectively, the soft tissues and the bones of the heads of four common dolphins and three harbour porpoises. This imaging study was completed by an examination of anatomical sections performed on two odontocete heads (a subadult common dolphin and a subadult harbour porpoise). The three complementary approaches allowed to illustrate anatomical differences in the echolocation systems of the common dolphin and the harbour porpoise. We captured images confirming strong differences of symmetry of the melon and of its connexions to the MLDB (Monkeys Lips/Dorsal Bursae) between the common dolphin and the harbour porpoise. The melon of the common dolphin is asymmetrically directly connected to the right bursae cantantes at its right side, whereas the melon of the harbour porpoise is symmetrical, and separated from the two bursae cantantes by a set of connective tissues. Another striking difference comes from the bursae cantantes themselves, less deeply located in the head of the common dolphin than in the harbour porpoise

Portus, la question de La localisation des ouvertures du port de Claude?: Approche géomorphologique

Goiran Jean Philippe, Tronchère Hervé, Carbonel Perre, Salomon Ferréol, Djerbi Hatem, Ognard Carole, Lucas Gérard, Colalelli Ugo. Portus. La question de la localisation des ouvertures du port de Claude : approche géomorphologique. In: Mélanges de l'École française de Rome. Antiquité, tome 120, n°1. 2008. Antiquité. pp. 217-228

Periprocedural safety and technical outcomes of the new Silk Vista Baby flow diverter for the treatment of intracranial aneurysms: results from a multicenter experience.

The aim of our study was to assess the technical success and the safety of this new low-profile flow diverter Silk Vista Baby (SVB) by evaluating the intraprocedural and periprocedural complication rate. Clinical, procedural, and angiographic data were analyzed. 41 consecutive patients (28 women; age average 50.5 years) with 43 aneurysms were treated with SVB. Aneurysm sizes were classified by their maximum diameter, with an average size of 9.5 mm (range 2-30 mm). Thirty-four cases were unruptured. five aneurysms previously ruptured, had recurrence after the initial coiling. There were two ruptured cases. Aneurysms' locations were: M1 segment (five cases), M2 segment (three cases), M3 segment (one case), middle cerebral artery (MCA) bifurcation (six cases), carotid-T (two cases), anterior communicating artery/A1/A2 (11 cases), pericallosal artery (four cases), supraclinoid ICA (two cases), PCom (one case), V4 segment (three cases), PCA (three cases), SCA (one case), and PICA (one case). We had five intraprocedural complications which resolved without clinical consequences and three events postprocedural events. Initial occlusion rates were: eight aneurysms (18.6%) were completely occluded, five aneurysms (11.6%) showed near-complete occlusion, four cases (9.3%) showed incomplete filling, and 26 cases (60.4%) showed persisting filling. The mRS score at discharge from the hospital did not change from the admission mRS score. Our study demonstrated that the use of the new low-profile flow diverter, SVB device, for the treatment of intracranial aneurysms is feasible and technically safe