Results 221 to 230 of about 732,851 (264)

Magnetic resonance imaging of primary lymphoma of the cervix

European Radiology, 2001
Although uterus and cervix infiltration is a frequent finding in the later stages of lymphomatous disease, primary lymphoma of the cervix is very uncommon; however, this entity can occasionally be distinguished from cervical carcinoma by means of MRI. This is an important fact as treatment and prognosis differ between these neoplasms. We present a case
Carlos, Marín, José M, Seoane, Marisa, Sánchez, Yolanda, Ruiz, José A, García   +4 more
openaire   +2 more sources

Quenching of primary resonance by a superharmonic resonance

Journal of Sound and Vibration, 1984
The author examines the reduction or enhancement of the response of a single-degree of freedom system to a primary resonant excitation by the addition of another resonant excitation. As an example, the case of superharmonic excitation is considered. A single-deggree-of-freedom system with quadratic and cubic nonlinearities is considered.
openaire   +1 more source

Proton magnetic resonance spectroscopy in primary blepharospasm

Neurology, 1998
Single-volume proton magnetic resonance spectroscopy, localized to basal ganglia, was carried out in 10 patients with primary blepharospasm (PB) to assess the levels of N-acetyl aspartate (NAA), creatine-phosphocreatine, and choline-containing compounds. NAA was reduced significantly in patients compared with control subjects.
Federico F, Simone IL, Lucivero V, Defazio G, De Salvia R, Mezzapesa DM, Petruzzellis M, Tortorella C, Livrea P.   +8 more
openaire   +3 more sources

Magnetic resonance imaging of primary vaginal carcinoma

Clinical Radiology, 2007
To describe the magnetic resonance imaging (MRI) features of vaginal carcinoma and to suggest a role for MRI in its management.Twenty-five patients with primary vaginal carcinoma treated at our institution between 1996 and 2005 were included in the study.
M B, Taylor, N, Dugar, S E, Davidson, B M, Carrington   +3 more
openaire   +2 more sources

Magnetic resonance imaging of primary breast lymphoma

La radiologia medica, 2009
Primary lymphomas of the breast (PBNHL) are uncommon. Magnetic resonance imaging (MRI) features of these malignancies can be relevant in establishing the extent of disease and planning the appropriate therapeutic strategy, usually represented by chemo- and radiotherapy, rather than surgery.
S. Rizzo, L. Preda, G. Villa, S. Brambilla, G. Pruneri, A. Alietti, E. Cassano, G. Martinelli, M. Bellomi   +8 more
openaire   +2 more sources

Characterizing the primary resonator in the cochlea

The Journal of the Acoustical Society of America
The cochlear traveling waves are explained by a bank of independent resonators coupled longitudinally by lymphatic fluids. Many cochlear models require at least two resonators to account for observed responses. To investigate the resonators in the cochlea, we used high-resolution optical coherence tomography to measure 2-D vibration patterns of the ...
Wei-Ching Lin, Anes Macic, Jong-Hoon Nam
openaire   +1 more source

The primary resonance of laminated piezoelectric rectangular plates

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2009
Based on Hamilton's principle and the Rayleigh-Ritz method, a model of a nonlinear dynamic laminated piezoelectric rectangular plate was established, and the governing equations were derived and solved for both the thin-plate and thick-plate models.
Shuai, Zhao, Zhifei, Shi, Hongjun, Xiang
openaire   +2 more sources

Primary glioma: diagnosis with magnetic resonance imaging

Journal of Computed Tomography, 1986
Seventeen patients with surgically documented primary glial-origin brain tumors were evaluated by magnetic resonance imaging and high-resolution computed tomography. The exclusion of CT ring-enhancing lesions directed the focus of this study toward lower grade tumors that were more difficult to diagnose. The computed tomography abnormalities were often
A C, Price, V M, Runge, J H, Allen, C L, Partain, A E, James   +4 more
openaire   +2 more sources

Dynamic Analysis of MEMS Resonators Under Primary-Resonance Excitation

Volume 1: 20th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 2005
We present a dynamic analysis and simulation of electrically actuated microelectromechanical systems (MEMS) resonators under primary-resonance excitation. We use a shooting technique, perturbation techniques, and long-time integration of the equation of motion to investigate the global dynamics of the resonators.
Ali H. Nayfeh, Mohammad I. Younis, Eihab M. Abdel-Rahman   +2 more
openaire   +1 more source

Magnetic Resonance Imaging of Primary Spinal Intramedullary Lymphoma

Journal of Neuroimaging, 2002
The authors report 2 cases of primary spinal intramedullary lymphoma and review all previously reported magnetic resonance imaging findings on this disease. The most common finding was a solid and homogeneously enhanced mass that was hyperintense on T2‐weighted images, without associated syringomyelia.
Nagahisa Murakami, Hideyuki Sawada, Tomoki Nakamizo   +2 more
exaly   +3 more sources