نتایج جستجو برای: subtraction

تعداد نتایج: 11686  

2017
N. Greiner

We present the automation of a subtraction method for photon radiation using the dipole formalism within the MadGraph framework. The subtraction terms are implemented both in dimensional regularization and mass regularization for massless and massive cases and non-collinear-safe observables are accounted for. DOI: https://doi.org/10.1007/JHEP12(2010)050 Posted at the Zurich Open Repository and ...

2017

We present the automation of a subtraction method for photon radiation using the dipole formalism within the MadGraph framework. The subtraction terms are implemented both in dimensional regularization and mass regularization for massless and massive cases and non-collinear-safe observables are accounted for. DOI: https://doi.org/10.1007/JHEP12(2010)050 Posted at the Zurich Open Repository and ...

2015
Seungsoo Lee Kyung Ah Kim Mi-Suk Park Sun Young Choi

The purpose of this study was to investigate the utility of MRI findings after drug-eluting beads (DEB) - transcatheter arterial chemoembolization (TACE) for hepatocellular carcinoma in predicting time to progression (TTP). This study included 48 patients with 60 lesions who underwent liver MRI within 3 months after DEB-TACE. MRI was assessed for arterial enhancement pattern, late washout, arte...

2013
Ann Dowker

Forty-four children between 6;0 and 7;11 took part in a study of derived fact strategy use. They were assigned to addition and subtraction levels on the basis of calculation pretests. They were then given Dowker's (1998) test of derived fact strategies in addition, involving strategies based on the Identity, Commutativity, Addend +1, Addend -1, and addition/subtraction Inverse principles; and t...

2010
Marcin Kozakiewicz Katarzyna Bogusiak Marcin Denkowski Marcin Hanclik

Purpose: The aim of this research was to compare different methods of geometric alignment produced by two programs developed to be utilized for digital subtraction radiography (DSR). Material and Methods: Material consists of 50 pairs of intra-oral radiographs taken in 50 patients during normal oral clinical treatment. Two programs invented by the authors of this article: ToothVis 1.4 (TV) and ...

Journal: :Stroke 2009
Ming-Hua Li Ying-Sheng Cheng Yong-Dong Li Chun Fang Shi-Wen Chen Wu Wang Ding-Jun Hu Hao-Wen Xu

BACKGROUND AND PURPOSE The value of MR angiography varies in diagnosis of intracranial aneurysms due to the difference of equipment and imaging technique. This study was to compare the effectiveness of 3-dimensional time-of-flight MR angiography at 3 T and rotational digital subtraction angiography, both with volume rendering (VR), in detecting intracranial aneurysms. METHODS One hundred thir...

2013
Stanislas Rapacchi Fei Han Yutaka Natsuaki Randall M Kroeker Adam N Plotnik Evan Lehrman James Sayre Gerhard Laub J Paul Finn Peng Hu

PURPOSE We propose a compressed-sensing (CS) technique based on magnitude image subtraction for high spatial and temporal resolution dynamic contrast-enhanced MR angiography (CE-MRA). METHODS Our technique integrates the magnitude difference image into the CS reconstruction to promote subtraction sparsity. Fully sampled Cartesian 3D CE-MRA datasets from 6 volunteers were retrospectively under...

Journal: :bulletin of emergency and trauma 0
mohammad farahmand md, assistant professor of community medicine, shiraz university of medical sciences, shiraz, iran siamak farahangiz mahnaz yadollahi

o bjectives: to determine the diagnostic accuracy of magnetic resonance angiography (mra) compared to intra-arterial digital subtraction angiography (dsa) in detection of intracranial aneurysms in those suffering from acute subarachnoid hemorrhage (sah). m e thods: this observational diagnostic study was performed at a tertiary teaching hospital and reference center in shiraz, iran. we included...

Journal: :Chest 1983
J M Tobis O Nalcioglu W L Henry

2005
Darren L. Bergey

STUDY DESIGN: A description of pedicle subtraction osteotomy for correction of kyphotic deformity of the cervical-thoracic spine and a prospective evaluation of the surgical outcomes. OBJECTIVES: To describe the surgical technique and the postoperative results of pedicle subtraction osteotomy in the upper thoracic spine and the cervical-thoracic junction. SUMMARY OF BACKGROUND DATA: Pedicle sub...

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