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Chang-Hyun Lee, Ji-Woong Kwon, Jaebong Lee, Seung-Jae Hyun, Ki-Jeong Kim, Tae-Ahn Jahng, Hyun-Jib Kim
STUDY DESIGN: A systemic review and meta-analysis. OBJECTIVE: To compare the ambulatory status and survival for metastatic epidural spinal cord compression (MESCC) in patients treated with direct decompressive surgical resection (DDSR) followed by radiotherapy (RTx) with those in patients treated with RTx alone. SUMMARY OF BACKGROUND DATA: Surgical techniques have remarkably evolved from decompressive laminectomy without ventral tumor excision to DDSR, which has displayed favorable outcomes since the 2000s...
April 20, 2014: Spine
Marco Bianchi, Chunmiao Zheng, Geoffrey R Tick, Steven M Gorelick
A new tracer experiment (referred to as MADE-5) was conducted at the well-known Macrodispersion Experiment (MADE) site to investigate the influence of small-scale mass-transfer and dispersion processes on well-to-well transport. The test was performed under dipole forced-gradient flow conditions and concentrations were monitored in an extraction well and in two multilevel sampler (MLS) wells located at 6, 1.5, and 3.75 m from the source, respectively. The shape of the breakthrough curve (BTC) measured at the extraction well is strongly asymmetric showing a rapidly arriving peak and an extensive late-time tail...
July 2011: Ground Water
Anne Z Steiner, Mishka Terplan, Richard J Paulson
BACKGROUND: Both selective estrogen receptor modulators, tamoxifen and clomiphene have been used for ovulation induction for patients with anovulatory infertility. This meta-analysis sought to compare the effectiveness of tamoxifen to clomiphene for the induction of ovulation and achievement of pregnancy. METHODS: We searched MEDLINE, BIOSIS, PreMEDLINE, CINAHL, International Pharmaceutical Abstracts, DDSR, ACP Journal Club, DARE and CCTR, along with reference lists and national experts...
June 2005: Human Reproduction
Y T C Ko, J P Huang, K W Yu
The dielectric properties of single-shell spherical cells with an intrinsic dielectric dispersion have been investigated. By means of the dielectric dispersion spectral representation (DDSR) for the Clausius-Mossotti (CM) factor, we express the dispersion strengths as well as the characteristic frequencies of the CM factor analytically in terms of the parameters of the cell model. These analytic expressions enable us to assess the influence of various model parameters on the electrokinetics of cells. Various interesting behaviours have been reported...
May 2004: European Physical Journal. E, Soft Matter
Jong-Ki Huh, Hyung-Gon Kim, Jee-Young Ko
OBJECTIVE: The purpose of this study was to determine the features of synovial fluid, the shape of the disk, and the presence of disk displacement without reduction (DDsR) of the temporomandibular joint. STUDY DESIGN: A total of 612 bilateral temporomandibular magnetic resonance images of 306 patients were reviewed. The status of the joint was categorized as follows: normal disk position, disk displacement with reduction, acute DDsR, subacute DDsR, and chronic DDsR...
June 2003: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
Xiaochuan Pan, Emil Y Sidky, Chien-Min Kao, Yu Zou, Charles E Metz
Image quality and quantitative accuracy in single-photon emission computed tomography (SPECT) can be degraded by, e.g., the effects of photon attenuation and finite spatial resolution. It is generally considered that adequate compensation for such effects on SPECT images requires data acquired over 2 pi. Recently, using the existing consistency condition on the data function, Noo and Wagner (2001 Inverse Problems 17 1357-72) have shown analytically that data acquired over only pi can be used to correct completely for the effect of uniform attenuation in SPECT...
August 7, 2002: Physics in Medicine and Biology
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