Results 91 to 100 of about 1,779,847 (297)

3-D hard and soft tissue images generated by Cone-beam CT.

open access: yes, 2013
3-D hard and soft tissue images generated by Cone-beam CT.
Yasas S. N. Jayaratne (291278)   +2 more
core   +1 more source

Hypervision Proton Surgery: The Future Direction of Proton Therapy

open access: yesiNew Medicine, EarlyView.
ABSTRACT Proton beams provide unique physical advantages characterized by a low entrance dose, negligible exit dose, and a sharp Bragg peak, which enable superior sparing of normal tissues and support safe dose escalation for improved tumor control. However, conventional photon‐based fractionation remains widely used in proton therapy, where prolonged ...
Li Li, Shuanghu Yuan
wiley   +1 more source

Cone beam CT of the musculoskeletal system: clinical applications

open access: yesInsights into Imaging, 2018
Objectives The aim of this pictorial review is to illustrate the use of CBCT in a broad spectrum of musculoskeletal disorders and to compare its diagnostic merit with other imaging modalities, such as conventional radiography (CR), Multidetector Computed
Magdalena Posadzy   +2 more
doaj   +1 more source

Acurácia da tomografia computadorizada de feixe cônico de campo reduzido e alta resolução na medição da espessura das paredes do canal radicular [PDF]

open access: yes, 2013
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências da Saúde. Odontologia.Dentes tratados endodonticamente normalmente apresentam grande perda de estrutura coronária necessitando frequentemente da colocação de retentores ...
Schulz, Thayrini
core  

3D‐Printed Sinus Lift Training Models as an Educational Tool for Dental Students

open access: yesJournal of Dental Education, EarlyView.
ABSTRACT Purpose/Objectives The aim of this study was to evaluate whether 3D‐printed models can be an inexpensive and suitable way to train dental students to perform a sinus lift. Methods The sinus lift model was created using CAD/CAM technology. Approximately one year prior to their final examination, thirty‐one dental students evaluated and tested ...
Linda Daume   +4 more
wiley   +1 more source

Dosimetric Outcomes of Definitive Radiation Therapy to Anal Squamous Cell Carcinoma in a Single Institution Using Volumetric Modulated Arc Therapy Evaluated Against Australian and International Treatment Planning Guidelines

open access: yesJournal of Medical Radiation Sciences, EarlyView.
This study evaluated 43 clinically approved VMAT plans for anal squamous cell carcinoma (SCC) against RTOG, eviQ, ANROTAT and departmental planning guidelines to assess the achievability of current dose constraints. While most target coverage and median OAR dose objectives were within protocol, not all constraints were consistently met, supporting the ...
Faisal Alshamrani   +9 more
wiley   +1 more source

Design of Compound Harmonic Transmission Device for Cone-beam Oral CT Machine

open access: yesJixie chuandong, 2020
Aiming at the high precision of the transmission system of the scanning device in the cone-beam oral CT diagnostic equipment,the ordinary transmission device is difficult to meet its use requirements. The oral CT machine developed in China has high noise
Zhen Zhang, Fengshou Zhang, Weidong Song
doaj  

Neural Deformable Cone Beam CT

open access: yes, 2023
Lukas Birklein   +4 more
openaire   +4 more sources

Dosimetry, Toxicity and Stability Associated With a Hyaluronic Acid‐Based Prostate‐Rectal Spacing Device During Prostate Radiation Therapy: A Retrospective Comparative Analysis

open access: yesJournal of Medical Radiation Sciences, EarlyView.
Rectal spacers composed of stabilised hyaluronic acid facilitated a favourable toxicity profile compared to no spacing during prostate radiation therapy. Acute GI toxicity (grade ≥ 1) was lower in the spacer cohort (23.5% vs. 48.0%; odds ratio = 0.33, p = 0.05) with grade ≥ 2 toxicity substantially lower (2.9% vs. 20.0%).
Fadila Najem   +7 more
wiley   +1 more source

Calcul de dose à partir d’images Cone Beam CT : état de l’art

open access: yes, 2018
National audienceIn external beam radiotherapy, the dose planning is currently based on computed tomography (CT) images. A relation between Hounsfield numbers and electron densities (or mass densities) is necessary for dose calculation taking ...
Lafond, C.   +18 more
core   +1 more source

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