Search results for "Helical computed tomography"

showing 2 items of 2 documents

Reflexions about imaging technique and examination protocol

2004

Computed tomography as imaging technique is established since decades, especially in examinations of the orbit. New technical development of multi-slice helical CT requires new attention, concerning radiation burden. Always asked is the use of contrast material in orbital examination. Indications and contraindications are discussed.

Protocol (science)medicine.medical_specialtymedicine.diagnostic_testbusiness.industryHelical computed tomographyComputed tomographyGeneral MedicineHelical ctOrbitContrast mediummedicineRadiology Nuclear Medicine and imagingRadiologyImaging techniqueNuclear medicinebusinessEuropean Journal of Radiology
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Automatische Klassifikation der Lebersegmente nach Couinaud: Entwicklung eines neuen Algorithmus und Evaluierung an Spiral-CT-Datensätzen

2003

Purpose: To develop a software tool that analyzes the anatomy of the portal vein branches and assigns segmental and subsegmental branches according to Couinaud's classification system and to evaluate its accuracy. Materials and Methods: The algorithm was developed in C++ on a PC. The algorithm recognizes the three major branching patterns of the portal vein. Segmental and subsegmental branches are assigned to 8 segments following Couinaud and encoded by 8 colors. The software was evaluated using CT data sets of 39 patients. After the individual segmental anatomy of each patient was determined by an experienced radiologist, automatic classification was performed and the results were compared…

Vena portaSoftwareLiver anatomyHelical computed tomographybusiness.industrySoftware toolComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONPortal veinRadiology Nuclear Medicine and imagingCt findingsSpiral ctbusinessAlgorithmRöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren
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