Search results for "Computer-assisted image analysis"

showing 2 items of 2 documents

Non-compact myocardium assessment by cardiac magnetic resonance: dependence on image analysis method

2018

To compare image analysis methods for the assessment of left ventricle non-compaction from cardiac magnetic resonance (CMR) imaging. CMR images were analyzed in 20 patients and 10 normal subjects. A reference model of the MR signal was introduced and validated based on image data. Non-compact (NC) myocardium size and distribution were assessed by tracing a single, continuous contour delimiting trabeculated region (Jacquier) or by one-by-one selection of trabeculae (Grothoff). The global non-compact/compact (NC/C) ratio, the NC mass, and the segmental NC/C ratio were assessed. Results were compared with the reference model. A significant difference between Grothoff and Jacquier approaches in…

AdultMaleRadiology Nuclear Medicine and ImagingHeart VentriclesMagnetic Resonance Imaging Cine030204 cardiovascular system & hematology030218 nuclear medicine & medical imagingYoung Adult03 medical and health sciences0302 clinical medicineNuclear magnetic resonanceMagnetic resonance imagingNuclear Medicine and ImagingImage Processing Computer-AssistedmedicineHumansComputer-assisted image analysiComputer-assisted image analysis; Isolated noncompaction of the ventricular myocardium; Magnetic resonance imaging; Radiology; Nuclear Medicine and Imaging; Cardiology and Cardiovascular MedicineCardiac imagingAnalysis methodAgedReproducibilitymedicine.diagnostic_testbusiness.industryImage (category theory)Significant differenceReproducibility of ResultsMagnetic resonance imagingMiddle AgedReference StandardsComputer-assisted image analysisCardiac Imaging Techniquesmedicine.anatomical_structureVentricleIsolated noncompaction of the ventricular myocardiumFemalebusinessCardiac magnetic resonanceRadiologyCardiology and Cardiovascular Medicine
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Evaluation of the primary stability in dental implants placed in low density bone with a new drilling technique, osseodensification: an in vitro study

2020

Background Primary stability is an important key determinant of implant osseointegration. We investigated approaches to improve primary implant stability using a new drilling technique termed osseodensification (OD), which was compared with the conventional under-drilling (UD) method utilized for low-density bones. Material and Methods We placed 55 conical internal connection implants in each group, in 30 low-density sections of pig tibia. The implants were placed using twist drill bits in both groups; groups Under Drilling (UD) and Osseodensification (OD) included bone sections subjected to conventional UD and OD drilling, respectively. Before placing the implants, we randomized the bone s…

computer-assisted diagnosisMaterials scienceSwinecomputer-assisted image processingOsseointegrationDental Prosthesis Retentionradicular cysts03 medical and health sciences0302 clinical medicineBone DensityOsseointegrationLow densityAnimalscomputer-assisted image analysisIn vitro studyTibiaGeneral DentistryUNESCO:CIENCIAS MÉDICASInternal connectionDental ImplantsResearchTwist drillDental Implantation EndosseousResonance Frequency Analysis030206 dentistryResonance frequency analysisTorqueOtorhinolaryngologykeratocystsodontogenic cystsSurgeryImplantImplantologyBiomedical engineering
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