CONSTITUTION:When an image having a slice range of the thickness of 5mm is formed, having a position X0 as center, by using a CT scanner 1, a table 7 is shifted to a position (X0-1.25mm), and the X-ray irradiated from an X-ray tube 5 is throttled, and the slice thickness is ...
PET / CT scannerreconstruction algorithmsradiopharmaceuticalsattenuation correction factorThanking to the ability of providing images of slices of organs with very high accuracy currently the PET / CT scanner is widely used for early diagnosis of many cancers and some other diseases. This paper examines...
This model is consistent with the method of data collection in actual machines. An expression is derived which pr... K Faulkner,BM Moores - 《Physics in Medicine & Biology》 被引量: 62发表: 1984年 Multiple beam computed tomography (CT) scanner image scannersdesignspatial resolutionx radiation...
Objective: Aim of the study was to compare image quality of spiral (helical) versus conventional (sequential) routine brain scans obtained on a spiral CT scanner of the latest generation. Materials and methods: In a prospective study 60 patients scheduled for cranial CT were examined in spiral ...
This iterative technique called ART (algebraic reconstruction technique) was used by Hounsfield in the EMI CT scanner Mark I (Hounsfield, 1973) to reconstruct images of 80 × 80 = 6400 voxels from 180 projections over 180°, each with 160 measurements. In that case, each scan contained 160 ...
JH Yanof,PH Klahr,L O'Donnell 被引量: 123 摘要: A frameless stereotactic CT scanner includes a virtual needle display for planning image-guided interventional procedures. The virtual needle is useful for planning the introduction of an object such as a biopsy probe into a patient at an entry...
Modality:CT 16 File Size:21 MB Description: Normal CT coronary angiogram acquired on a 16 detectors CT scanner. Open in OsiriX Download ZIP Alias Name:GRUSELAMBIX Modality:XA angiogram File Size:72 MB Description: Coronary angiogram. Pre and post balloon angioplasty of a stenosis or the right ...
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Examples of the modifications are shown using the AS&E CT scanner. The method convolves or deconvolves the CT image with an appropriate point spread function. Since the filter-function modifications are done conceptually in real space rather than in frequency space, the details of the modifications...
You have to implement set of wrapper classes using Objective-C++. opencv-spm - A Swift package wrapping around OpenCV. SwiftCamScanner - A pod written in swift that lets you scan and crop documents. It uses edge detection and perspective transformation with OpenCV. ColorDetection - Color...