keyword
MENU ▼
Read by QxMD icon Read
search

CBCT

keyword
https://www.readbyqxmd.com/read/28225319/cone-beam-computed-tomography-and-histological-evaluations-of-a-straight-electrode-array-positioning-in-temporal-bones
#1
Isabelle Mosnier, Charlotte Célérier, Jean-Loup Bensimon, Daniele de Seta, Olivier Sterkers, Yann Nguyen, Daniele Bernardeschi
CONCLUSION: CBCT allows a precise evaluation of the dimensions and of the shape of the cochlear duct that is of primary importance for the choice of the length and the design of the electrode array. This radio-histological study confirms that CBCT is a reliable tool to be used in clinical studies to evaluate the position of straight electrode arrays within the cochlear scala. OBJECTIVE: To validate the reliability of cone beam computed tomography (CBCT) in the evaluation of cochlear anatomy and positioning of a straight electrode array, by comparing radiological images to histological analysis of cochlear implanted temporal bones...
March 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28221014/value-of-cbct-in-vertical-root-fracture-detection-in-endodontically-treated-teeth
#2
Eshaghali Saberi, Narges F Mollashahi, Zeinab Movasagh, Alireza A Moghaddam, Abbas Mohammadi
BACKGROUND: Vertical root fracture (VRF) is a diagnostic challenge for dentists. Cone-beam computed tomography (CBCT) scans provide accurate three-dimensional images of teeth enabling detection of VRFs. This in-vivo study compared the accuracy of CBCT and exploratory surgery for detection of VRFs in endodontically-treated teeth. METHODS: Forty endodontically-treated teeth of 40 patients with clinical signs and symptoms of VRFs were evaluated. No fracture line was detectable on periapical radiographs...
April 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28220482/morphological-interaction-between-the-nasal-septum-and-nasofacial-skeleton-during-human-ontogeny
#3
Matthew J Goergen, Nathan E Holton, Thorsten Grünheid
The nasal septal cartilage is thought to be a key growth center that contributes to nasofacial skeletal development. Despite the developmental influence of the nasal septum however, humans often exhibit a high frequency of septal deviation suggesting discordance in the growth between the septum and surrounding nasofacial skeleton. While there are numerous etiological factors that contribute to septal deviation, the surrounding nasofacial skeleton may also act to constrain the septum, resulting in altered patterns of growth...
February 20, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28219332/the-assessment-of-accessory-mental-foramen-in-a-selected-polish-population-a-cbct-study
#4
Ewa Zmysłowska-Polakowska, Mateusz Radwański, Michał Łęski, Sławomir Ledzion, Monika Łukomska-Szymańska, Michał Polguj
BACKGROUND: Accessory mental foramen (AMF) is a rare anatomical variation. When accessory mental foramen is present, the nerves and vessels that go through the mental foramen (MF) must follow alternative courses and special care must be taken during dental treatment planning. The purpose of this study was to evaluate the occurrence and the location of AMF in a selected Polish population using cone-beam computed tomography (CBCT). METHODS: Two hundred CBCT (105 males and 95 females) examinations were evaluated for the presence of AMFs...
February 20, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28218866/improvement-in-the-initial-isq-through-use-of-a-modified-surgical-technique
#5
Rosa-Maria Diaz-Sanchez, Jose-Maria Delgado-Muñoz, Pilar Hita-Iglesias, Kyle T Pullen, Maria-Angeles Serrera-Figallo, Daniel Torres-Lagares
To ensure that similar primary implant stability measured by resonance frequency analysis (RFA) could be obtained in different jawbone densities by using a specific surgical drilling protocol and, to correlate those RFA measurements with factors related to the implant design, width and length, we are performed a one-year prospective clinical study was carried out using 27 subjects. A total of 67 hydrophilic titanium implants were placed using a standard two-stage implant placement protocol. The bone type at each implant site was determined by evaluation of a preoperative, high-resolution cone beam computed tomography (CBCT) scan...
February 20, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28216527/usefulness-of-intraoperative-cone-beam-ct-images-on-video-assisted-thoracic-surgery
#6
Harutaka Hisano, Tohru Sakuragi, Yoshinobu Kakiuchi, Satoshi Takita, Yuuji Takeda, Shigeki Morita, Hiroyuki Irie
For the resection of pulmonary ground glass opacity (GGO) or non-palpable nodule on video-assisted thoracic surgery (VATS), preoperative computed tomography (CT)-guided VATS marker pricking is usually performed. Recently, air embolisms after VATS marker pricking have been reported to be serious problems. The purpose of this study was to evaluate the usefulness of intraoperative cone beam CT images on VATS to avoid preoperative VATS marker pricking. The CT number of the both GGO and nodule indicate the range from -200 to -800 HU in general...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28216273/detection-of-fractured-endodontic-instruments-in-root-canals-comparison-between-different-digital-radiography-systems-and-cone-beam-computed-tomography
#7
Ana Caroline Ramos Brito, Francielle Silvestre Verner, Rafael Binato Junqueira, Mayra Cristina Yamasaki, Polyane Mazucato Queiroz, Deborah Queiroz Freitas, Christiano Oliveira-Santos
INTRODUCTION: This study compared the detection of fractured instruments in root canals with and without filling by periapical radiographs from 3 digital systems and cone-beam computed tomographic (CBCT) images with different resolutions. METHODS: Thirty-one human molars (80 canals) were used. Root canals were divided into the following groups: the control group, without fillings; the fracture group, without fillings and with fractured files; the fill group, filled; and the fill/fracture group, filled and with fractured files...
February 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28214286/-partial-delegation-to-radiation-therapists-of-the-control-by-cone-beam-ct-of-prostate-positioning
#8
C Benhaïm, G Loos, J L Achard, L Berger, C Caillé, T Frédéric-Moreau, J Biau, M Lapeyre
PURPOSE: Intensity modulated radiotherapy for prostate cancer involves daily monitoring of the positioning of the prostate, possible with cone beam CT (CBCT). It allows increased accuracy compared to readjustments but induces an increase in the time dedicated to these medical checks. The aim of the study was to evaluate the possibility of delegation of this task to the radiation therapists by comparing their readjustments to the doctors. PATIENTS AND METHODS: Five consecutive patients treated with radiation for prostate cancer (76Gy) were analysed...
February 14, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28212456/influence-of-posterior-mandibular-dimensions-on-alveolar-bone-microarchitecture
#9
Alberto Monje, Yiqun Wu, Wei Huang, Wenjie Zhou, Pablo Galindo-Moreno, Jesus Montanero-Fernandez, Rachel A Sheridan, Hom-Lay Wang, Feng Wang
PURPOSE: The aim of this study was to investigate the influence of posterior mandibular dimensions (height and width at various levels) on alveolar bone microarchitecture using microcomputed tomography (micro-CT). MATERIALS AND METHODS: Partially edentulous subjects with one missing molar were included in the study. A bone core biopsy was performed at the site of planned implant surgery. For each patient, alveolar morphologic and architectural characteristics were analyzed using cone beam computed tomography (CBCT) and micro-CT imaging...
February 17, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28211367/high-quality-four-dimensional-cone-beam-ct-reconstruction-using-motion-compensated-total-variation-regularization
#10
Hua Zhang, Jianhua Ma, Zhaoying Bian, Dong Zeng, Qianjin Feng, Wufan Chen
Four dimensional cone-beam computed tomography (4D-CBCT) has great potential clinical value because its ability to describe tumor and organ motion. But the challenge in 4D-CBCT reconstruction is the limited number of projections at each phase, which resulting in the reconstruction full of noise and streak artifacts with the conventional analytical algorithms. To address this problem, in this paper, we propose a motion compensated total variation regularization approach which tries to maximum explore the temporal coherence of the spatial structures among 4D-CBCT phases...
February 17, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28210446/differences-between-panoramic-and-cone-beam-ct-in-the-surgical-evaluation-of-lower-third-molars
#11
Ruggero Rodriguez Y Baena, Riccardo Beltrami, Angelo Tagliabo, Silvana Rizzo, Saturnino-Marco Lupi
BACKGROUND: The aim of this study was to evaluate the ability to identify the contiguity between the root of the mandibular third molar and the mandibular canal (MC) in panoramic radiographs compared with Cone Beam-CT. MATERIAL AND METHODS: Panoramic radiographs of 326 third molars and CBCT radiographs of 86 cases indicated for surgery and considered at risk were evaluated. The following signs were assessed in panoramic radiographs as risk factors: radiolucent band, loss of MC border, change in MC direction, MC narrowing, root narrowing, root deviation, bifid apex, superimposition, and contact between the root third molar and the MC...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28206730/sinus-presurgical-evaluation-a-literature-review-and-a-new-classification-proposal
#12
Lorenzo Tavelli, Andrea E Borgonovo, Dino Re, Carlo Maiorana
Presurgical evaluation with cone beam computed tomography (CBCT) or computed tomography (CT) has become an essential tool for diagnosis and surgical planning, including maxillary sinus floor elevation. Before performing a sinus lift, the clinician's attention should not be only directed to the patency of the ostium through CBCT or CT, because many anatomical features could influence the surgical approach of sinus floor elevation. The goal of this article was to facilitate the communication between clinicians regarding the type of maxillary sinus, encourage in-depth analysis prior to surgery and reduce the risk of complications due to possible underestimation of important parameters...
February 15, 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28204849/effects-of-impacted-maxillary-canines-on-root-resorption-of-lateral-incisors-a-cone-beam-computed-tomography-study
#13
Faruk I Ucar, Ahmet A Celebi, Enes Tan, Tolga Topcuoğlu, Ahmet Ercan Sekerci
OBJECTIVES: The aim of this study was to analyze the amount of root resorption of maxillary lateral incisors by relating the position, location, and angulation of the impacted canine using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: The study sample consisted of panoramic and CBCT radiographs of 46 patients with a unilateral impacted canine (16 males and 30 females; mean age: 19.53 ± 6.66 and 19.44 ± 5.77 years, respectively). Sector location and canine angulation were measured in panoramics...
February 15, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28204777/effective-dose-in-two-different-dental-cbct-systems-newtom-vgi-and-planmeca-3d-mid
#14
Mohammad Ghaedizirgar, Reza Faghihi, Reza Paydar, Sedigheh Sina
No abstract text is available yet for this article.
February 16, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28203008/-effects-of-different-techniques-on-removal-of-vapor-lock-in-the-apical-region-of-curved-canals-a-cone-beam-computed-tomography-study
#15
Z Su, Y H Bai, X M Hou
OBJECTIVE: To compare the effect of four different techniques on removal of vapor lock in the apical region of curved root canals. METHODS: Forty simulated resin root canals with 45° curvature were prepared using WaveOne Primary, then the apical foramen were sealed with soft wax. The teeth were divided randomly into 4 groups thereafter (n=10). Contract solution was injected into the canals using a 30 G side-vented needle and scanned with cone-beam CT (CBCT) to identify the volume of the vapor lock...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28203006/-observation-of-bone-morphology-in-furcation-defects-of-mandibular-molars-using-cone-beam-computed-tomography
#16
J Zhu, X Y Ouyang
OBJECTIVE: To observe mesial-distal bone morphology in classes II and III furcation involvements (FI) of mandibular molars using cone beam computed tomography (CBCT), to develop a classification system of mesial-distal bone morphology of furcation defects and to observe the intrabony defects on CBCT images. METHODS: Based on the existing CBCT data, the mandibular molars with horizontal bone defects in furcation area were observed. One hundred and seventeen sites of 81 mandibular molars with class II or class III FIclassified on CBCT images were included...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28203004/-a-method-for-rapid-extracting-three-dimensional-root-model-of-vivo-tooth-from-cone-beam-computed-tomography-data-based-on-the-anatomical-characteristics-of-periodontal-ligament
#17
Y J Zhao, S W Wang, Y Liu, Y Wang
OBJECTIVE: To explore a new method for rapid extracting and rebuilding three-dimensional (3D) digital root model of vivo tooth from cone beam computed tomography (CBCT) data based on the anatomical characteristics of periodontal ligament, and to evaluate the extraction accuracy of the method. METHODS: In the study, 15 extracted teeth (11 with single root, 4 with double roots) were collected from oral clinic and 3D digital root models of each tooth were obtained by 3D dental scanner with a high accuracy 0...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28203001/-effect-of-concentrated-growth-factors-on-the-treatment-of-degree-ii-furcation-involvements-of-mandibular-molars
#18
J Qiao, J Y Duan, Y Chu, C Z Sun
OBJECTIVE: Concentrated growth factors (CGF), a new generation of platelet concentrate products, appears to have more abundant growth factors because of its special centrifugation process. However, there are few studies supporting this. This study was designed to evaluate the effect of CGFs in the treatment of II° furcations of mandibular molars. METHODS: In the present study, thirty-one II° furcation involvements in twenty mandiblular molars were included and randomly divided into two groups...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28202195/long-term-ototoxicity-in-women-after-cisplatin-treatment-for-ovarian-germ-cell-cancer
#19
Jakob Skalleberg, Olesya Solheim, Sophie D Fosså, Milada Cvancarova Småstuen, Terje Osnes, Per Ole M Gundersen, Marie Bunne
OBJECTIVE: Evaluate long-term cisplatin-induced ototoxicity in women treated for malignant ovarian germ cell tumors (MOGCT). METHODS: Seventy-four women treated for MOGCT in Norway (1980-2009) were analyzed: 41 had received cisplatin-based chemotherapy (CBCT) ("Cases") and 33 had no CBCT ("Controls"). Median follow-up was 15years. Hearing was assessed by pure tone audiometry and by the SCIN questionnaire. Air conduction thresholds were reported as absolute hearing thresholds and age-adjusted thresholds...
February 12, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28199139/feasibility-of-vacuum-assisted-breast-cone-beam-ct-guided-biopsy-and-comparison-with-prone-stereotactic-biopsy
#20
Susanne Wienbeck, Joachim Lotz, Uwe Fischer
OBJECTIVE: The feasibility of breast vacuum-assisted biopsy (VAB) guided by cone-beam CT (CBCT) was assessed. The initial clinical performance of CT-guided breast VAB was compared with that of established prone stereotactic VAB. MATERIALS AND METHODS: In this retrospective clinical trial, VABs were performed for women with mammographically suspicious breast lesions using a dedicated breast CBCT protocol. The technical success rate, total intervention time, and complications were documented and compared with examinations performed by prone stereotactic VAB...
February 15, 2017: AJR. American Journal of Roentgenology
keyword
keyword
663
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"