Intradural dermoids are rare congenital tumors representing approximately 0.05% of all intracranial lesions. These benign tumors have a typical appearance on CT and MR due to their lipid components. The complication caused by rupture are the spillage of the fatty material into the cerebrospinal fluid. We report a case of a ruptured dermoid cyst showing fat/fluid levels in both side ventricles a...

' X Abstract We investigated an intracranial pressure (ICP) estimation method based on aqueductal cerebrospinal fluid (CSF) flow rate measurements from cine phase-contrast MR images. A fluid dynamics model is provided that relates CSF flow rate change to the elastance index, which is a parameter proportional to the ICP. Experimental results from 8 patients with clinical diagnosis of increased I...

The magneto-rheological fluid Dual Clutch Transmission (MDCT for short) adopts the magneto-rheological (MR for short) effect of magneto-rheological fluid (MRF for short) and the working characters of Dual-Clutch Transmission (DCT for short), and combines the characteristics with long service life, no wear, simple structure, accurate control of MR effect with the principles of DCT technology, it...

Magnetorheological (MR) fluid devices are widely used in active automotive control applications. However, MR fluid-based valve actuators not the limelight. This paper proposes a new flexible train with an system; can enhance performance of internal combustion engines. A major component this is magnetic plate block filled and surrounded by coil. controls field eventually facilitates lifts openin...

Magnetorheological dampers, or as they are more commonly called, MR dampers, are being developed for a wide variety of applications where controllable damping is desired. These applications include dampers for automobiles, heavy trucks, bicycles, prosthetic limbs, gun recoil systems, and possibly others. This paper first introduces MR technology through a discussion of MR fluids and then by giv...

BACKGROUND AND PURPOSE We adopted an imaging algorithm in 2011 in which extradural fluid on spinal MR imaging directs dynamic CT myelography. We assessed algorithm compliance and its effectiveness in reducing repeat or unnecessary dynamic CT myelograms. MATERIALS AND METHODS CT myelograms for CSF leaks from January 2011 to September 2014 were reviewed. Patients with iatrogenic leaks, traumati...

We aimed to evaluate the radiologic and clinical findings of patients with tuberculous meningitis encountered during a 4-year period, retrospectively. Sixteen patients with tuberculous meningitis were admitted to our hospital. The diagnosis was based on abnormal neurologic symptoms and signs, cerebrospinal fluid findings, negative bacteria culture, and abnormalities on brain-imaging studies. CT...

We report the CT and MR appearance of a nontraumatic hemorrhagic arachnoid cyst presenting with a third nerve paresis in a 37-year-old man. The cyst, located in the left suprasellar area, contained a fluid-blood level with stigmata of subacute hemorrhage on both CT and MR studies.

Retroclival arachnoid cyst is a rare mass lesion, with only seven cases previously reported in literature. MR is the imaging modality of choice in its evaluation and in its differentiation from epidermoid cyst. The case reported here was surgically proved and had an uncharacteristic MR signal intensity that was higher than that of cerebrospinal fluid due to previous hemorrhage.

The origin of the solitary waves in Earth's magnetosphere and solar wind, particularly close to magnetic reconnection (MR) regions, is still an open question. For that purpose, we used fluid model obtain mechanism behind formation space plasmas with a variety components. Our findings reveal at separatrix MR magnetotail, counter-ejected electron beam leads broadening pulse amplitude. While incre...