摘要:
A system and method are provided for the reconstruction of medical image data using filtered backprojection with the use of a wavelet transformation. A filter function is applied to at least one part of an object using projection data captured with a detection device prior to backprojection.
摘要:
A system and method are provided for the reconstruction of medical image data using filtered backprojection with the use of a wavelet transformation. A filter function is applied to at least one part of an object using projection data captured with a detection device prior to backprojection.
摘要:
A method for reconstructing a three-dimensional image dataset from two-dimensional projection images includes recording the projection images using a collimator downstream of an X-ray source. A local Laplace filter is initially applied to the projection data of the projection images during the reconstruction using filtered back-projection. After this, high-frequency spikes arising in the Laplace-filtered projection data at boundaries to the image region are removed by a spike filter, and a global residual filter is applied. A fit parameter describing a fit function approximating the projection data characteristic in the uncorrected projection images inside the image region is determined based on at least marginal values of the projection data present at the boundaries. Next, following on from the use of the residual filter, an additive correction of the residual-filtered projection data in the image region is performed with the fit function scaled by a scaling factor.
摘要:
A method for reconstructing a three-dimensional image dataset from two-dimensional projection images includes recording the projection images using a collimator downstream of an X-ray source. A local Laplace filter is initially applied to the projection data of the projection images during the reconstruction using filtered back-projection. After this, high-frequency spikes arising in the Laplace-filtered projection data at boundaries to the image region are removed by a spike filter, and a global residual filter is applied. A fit parameter describing a fit function approximating the projection data characteristic in the uncorrected projection images inside the image region is determined based on at least marginal values of the projection data present at the boundaries. Next, following on from the use of the residual filter, an additive correction of the residual-filtered projection data in the image region is performed with the fit function scaled by a scaling factor.
摘要:
A system displays a raster-based or a vector-based formatted drawing on a user interface. A user selects a device on the drawing. The selected device is classified on a template. The drawing is searched for the classified template. Three-dimensional characteristics are imbued to the selected device. Connection types among different types of devices on the drawing are received into the system. A search is performed for all connection instances throughout the drawing using the received connection types. An object oriented and three-dimensionally, spatially referenced view of the drawing is generated on a user interface.
摘要:
The present invention provides a compound of Formula (I) as described herein, or a pharmaceutically acceptable salt or a solvate thereof. The present invention also provides pharmaceutical compositions comprising one or more said compounds, and methods for using said compounds for treating or preventing a thromboses, embolisms, hypercoagulability or fibrotic changes.
摘要:
Disclosed are compounds of the formula or a pharmaceutically acceptable salt or solvate thereof, wherein R1 is R is —C(O)—N(R27)(R28) or and the remaining variables are as defined in the specification.Also disclosed are pharmaceutical compositions comprising the compounds of formula I.Also disclosed are methods of treating cognitive or neurodegenerative diseases such as Alzheimer's disease.Also disclosed are pharmaceutical compositions and methods of treating cognitive or neurodegenerative diseases comprising the compounds of formula I in combination with a β-secretase inhibitor other than those of formula I, an HMG-CoA reductase inhibitor, a gamma-secretase inhibitor, a non-steroidal anti-inflammatory agent, an N-methyl-D-aspartate receptor antagonist, a cholinesterase inhibitor or an anti-amyloid antibody.
摘要:
Heterocyclic-substituted tricyclics of the formula or a pharmaceutically acceptable salt or solvate of said compound, isomer or racemic mixture wherein represents an optional double bonds the dotted line is optionally a bond or no bonds resulting in a double bond or a single bond, as permitted by the valency requirement and wherein E, A, G M, Het, B, X, R3, R10, R11, R32 and R33 are herein defined and the remaining substituents are as defined in the specification, are disclosed, as well as pharmaceutical compositions containing them and a method of treating diseases associated with thrombosis, atherosclerosis, restenosis, hypertension, angina pectoris, arrhythmia, heart failures and cancer by administering said compounds. Combination therapy with other cardiovascular agents is also claimed.
摘要:
Heterocyclic-substituted tricyclics of the formula or a pharmaceutically acceptable salt thereof, wherein: the dotted line represents an optional single bond; represents an optional double bond; n is 0–2; Q is cycloalkyl, optionally substituted by R13 and R14; R13 and R14 are independently selected from (C1–C6)alkyl, (C3–C8)cycloalkyl, —OH, (C1–C6)alkoxy, R27-aryl(C1–C6)alkyl, heteroaryl, heteroarylalkyl, heterocyclyl, heterocyclylalkyl, halogen and haloalkyl; or R13 and R14 together form a spirocyclic or a heterospirocyclic ring of 3–6 atoms; Het is a mono- or bi-cyclic optionally substituted heteroaryl group; and B is a bond, alkylene, or optionally substituted alkenylene or alkynylene, wherein the remaining substituents are as defined in the specification, are disclosed, as well as pharmaceutical compositions containing them and a method of treating diseases associated with thrombosis, atherosclerosis, restenosis, hypertension, angina pectoris, arrhythmia, heart failure, and cancer by administering said compounds. Combination therapy with other cardiovascular agents is also claimed.
摘要:
Fused-ring, heterocyclic-substituted tricyclics of the formula or a pharmaceutically acceptable salt or solvate of said compound, isomer or racemic mixture wherein represents an optional double bond, and wherein An, En, Mn, Gn, Jn, R3, n7, R8, R9, R10, R11, R32, R33, X, Y, B and Het are herein defined and the remaining substituents are as defined in the specification, are disclosed, as well as pharmaceutical compositions containing them and a method of treating diseases associated with thrombosis, atherosclerosis, restenosis, hypertension, angina pectoris, arrhythmia, heart failure, and cancer by administering said compounds. Combination therapy with other cardiovascular agents is also claimed.