Results 111 to 120 of about 2,215,491 (268)

Development and dosimetric verification of epoxy-BaSO4 bone-equivalent composites for mandibular and cervical regions in radiotherapy planning

Medicine Science
This study aimed to develop epoxy-barium sulfate (BaSO₄) composites as bone-equivalent materials for the mandibular and cervical vertebral regions of a Rando phantom and to evaluate their radiological and dosimetric accuracy in radiotherapy planning ...
Eda Kaya Pepele, Yildiray Ozguven, Sule Parlar   +2 more
doaj   +1 more source

Detection of Non‐Displaced Dentoalveolar Fractures Using CBCT: Influence of Visualization Techniques on Diagnostic Accuracy and Observer Workflow

Dental Traumatology, EarlyView.
ABSTRACT Objective To evaluate the diagnostic accuracy of cone‐beam computed tomography (CBCT) visualization techniques in detecting clinically relevant non‐displaced dentoalveolar fractures and to assess their impact on observer efficiency during trauma evaluation.
Sedef Ayşe Taşyapan, Zeynep Afra Akbıyık Az   +1 more
wiley   +1 more source

Automated segmentation of medical images for 3D printing – voxel centric processing of spatially textured voxels

Virtual and Physical Prototyping
Traditional medical segmentation and current 3D modelling techniques produce tissue models that capture only surface topology which lacks the volumetric material properties to accurately represent the internal structure.
Norman Cushing, Barry Fell, Kazi Safowan Shahed, Kevin W. Moser, Guha Manogharan   +4 more
doaj   +1 more source

Hounsfield unit comparison of grafted versus non-grafted extraction sockets

, 2015
Volumetric changes of the alveolar ridge after socket preservation with various techniques have been investigated frequently. However, changes in bone density and quality of bone within the extraction sockets have seldom been studied. The purpose of this
Quereshy, F.A., Baur, D.A., Loveless, Tyman P., ALTAY, MEHMET ALİ, Loveless, T.P., Flores-Hidalgo, Andres, Quereshy, Faisal A., Kilinc, Y., KILINÇ, YELİZ, Altay, M.A., Flores-Hidalgo, A., Baur, Dale A.   +11 more
core   +1 more source

Anatomical Determinants of the Left Atrial Electrograms: Wall Thickness and Myocardial Fat Infiltration

Journal of Cardiovascular Electrophysiology, EarlyView.
ABSTRACT Introduction Electrogram peak‐to‐peak voltage depends on atrial wall structure and mapping configuration. We evaluated the relationship between computed tomography–derived atrial wall thickness, intramyocardial fat, myocardial muscle thickness, and electrogram voltage obtained with omnipolar, bipolar, and unipolar mapping.
Cecilia Granata, Nicola Pierucci, Lorenzo Mazzocchi, Raimondo Pittorru, Roger Borras, Jean‐Baptiste Guichard, Mariona Regany‐Closa, Jana Reventos‐Presmanes, Laia Llorca, Rosa Maria Figueras i Ventura, Jose Maria Tolosana, Adelina Doltra, Susana Prat, Blanca Domenech‐Ximenos, Rosario Jesus Perea‐Palazon, Till Althoff, Lluís Mont, Eduard Guasch, Marta Sitges, Ana Garcia‐Alvarez, Ivo Roca‐Luque, Andreu Porta‐Sanchez   +21 more
wiley   +1 more source

Hounsfield unit and its correlation with spontaneous expulsion of lower ureteric stone

Therapeutic Advances in Urology, 2019
Background: Hounsfield unit (HU) is the measure of stone density, and is utilized in the predetermination of type of stone. The purpose of this study was to identify some factors in noncontrast computed tomography (NCCT) of kidney, ureter, and bladder ...
Sriharsha Bokka, Amit Jain
doaj   +1 more source

When Virchow's law fails: Crouzon syndrome as a test case for quantitative suture closure–endocranial shape relationships

Journal of Anatomy, EarlyView.
Crouzon syndrome shows preserved intracranial volume but profoundly altered endocranial shape, with disrupted allometric coupling relative to controls. Treating calvarial suture patency as a continuous, age‐adjusted variable reveals strong system‐level covariation with endocranial morphology, effects invisible to conventional categorical suture scoring.
F. W. R. Steup, E. V. Groenenboom, O. Delassus, A. Balzeau, A. Profico, G. Paternoster, M. Moazen, R. H. Khonsari, L. S. Van De Lande, M. Taverne   +9 more
wiley   +1 more source

Use of Hounsfield units in cone-beam computed tomography [PDF]

American Journal of Orthodontics and Dentofacial Orthopedics, 2015
Robert Willer Farinazzo, Vitral, Marcelo Reis, Fraga, Marcio José, da Silva Campos   +2 more
openaire   +2 more sources

Comparison of Hounsfield Unit in cone beam computed tomography and conventional computed tomography

, 2013
치의학과/석사임플란트 식립 부위의 골밀도는 성공적인 임플란트를 위한 필수적인 요소로 고려되고 있다. 일반 전산화단층영상에서는 Hounsfield Unit 값을 통해 골밀도를 객관적으로 나타낼 수 있었으나 콘빔형 전산화단층영상에서는 아직 객관화된 기준이 없다. 본 연구에서는 MINI CT QC Phantom 모델에 대한 일반 전산화단층영상과 콘빔형 전산화단층영상 촬영 데이터를 비교 분석하여 콘빔형 전산화단층영상에서 조직 밀도에 대한 정량적 평가 기준을 ...
한수진
core  

Cumulative hazard of PTBE after LINAC-based radiation treatment for intracranial meningioma according to the risk factor group (age ≥65 years, skull HU ≤630.625 and GTV >7.194 cc).

, 2020
PTBE = peritumoral brain edema; HU = Hounsfield unit; GTV = gross tumor volume; HR = hazard ratio; CI = confidence interval.
Myung-Hoon Han (2576842), Jae Min Kim (7821692), Je Il Ryu (5204888), Ryang-Hun Lee (8463222), Young Soo Kim (2109865), Jin Hwan Cheong (4537954)   +5 more
core   +1 more source