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Manual tactile sensation, digital radiograph, and multidetector computed tomography: An in vitro study.

Conclusion: Working length measurement with MDCT scan and other two conventional methods does not show significant difference in measurement. Use of newer 3D imaging technique is useful in root canal treatment for measuring working length.
Source: Dental Technology Blog - Category: Dentistry Source Type: news

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To introduce and assess effectiveness of a radiographer-led screening programme for the detection of unsuspected pulmonary emboli on routine contrast-enhanced computed tomography (CT), and to evaluate radiographer response to this extended role.
Source: Clinical Radiology - Category: Radiology Authors: Source Type: research
CONCLUSIONS The comparisons between the mobility of cervical spine in ventroflexion/dorsiflexion on radiographs of the real models and the simulated numerical model by finite element method showed a high degree of results conformity with a minimal difference. Therefore, for future experiments the validated numerical model can be used as a tool of basic research on condition that the results of analyses carried out by finite element method will be affected only by an insignificant error. The computer model, on the other hand, is merely a simplified system and in comparison with the real situation cannot fully evaluate the d...
Source: Acta Orthopaedica - Category: Orthopaedics Authors: Tags: Acta Chir Orthop Traumatol Cech Source Type: research
This study evaluated the characteristics of a newly developed 3-dimensional printed mesh structure titanium spacer and its efficacy for posterior lumbar interbody fusion. Posterior lumbar interbody fusion with this spacer was performed at 53 segments (40 patients; mean age, 64 years; range, 51-73 years). Data were collected prospectively. Radiographic characteristics were analyzed with changes in interbody height, instability of the segments, formation of bone bridges around the implants, and pseudarthrosis, as determined by dynamic radiographs and postoperative computed tomography scans. Clinical outcomes were evaluated w...
Source: Orthopedics - Category: Orthopaedics Authors: Tags: Orthopedics Source Type: research
The purpose of this article was to describe a fully digital workflow used to perform computer-guided flapless implant placement in an edentulous patient without the use of conventional impressions, models or a radiographic guide. Digital data for the workflow were acquired using an intraoral scanner and cone-beam computed tomography (CBCT). The image fusion of the intraoral scan data and the CBCT data was performed by matching resin markers placed in the patient ’s mouth. The definitive digital data were then used to design a prosthetically-driven implant position, surgical template, and computer-aided design/compute...
Source: Journal of Oral and Maxillofacial Surgery - Category: ENT & OMF Authors: Source Type: research
ConclusionConventional radiographs showed the highest accuracy for bone/implant interface diagnosis. However, CBCT scans (i-CAT 0.125 mm voxel), if available or if performed for pre-surgical assessment of another implant site, may provide similar accuracy.
Source: Dental Technology Blog - Category: Dentistry Source Type: news
Conventional radiography (plain film), ultrasonography, and computed tomography (CT) are important modalities for the evaluation of patients with trauma. In meta-stable or unstable patients, the combination of chest radiograph, pelvis radiograph, and focused assessment for sonography in trauma (FAST) or extended FAST rapidly triages the torso. CT has become a standard for definitive imaging in blunt trauma. CT angiography is the modality of choice for suspected vascular injuries of the neck and extremities. The impact of ionizing radiation (effective dose) from CT scans may be significant at the population level. Imaging s...
Source: Surgical Clinics of North America - Category: Surgery Authors: Source Type: research
LITFL • Life in the Fast Lane Medical Blog LITFL • Life in the Fast Lane Medical Blog - Emergency medicine and critical care medical education blog Just when you thought your brain could unwind on a Friday, you realise that it would rather be challenged with some good old fashioned medical trivia FFFF…introducing Funtabulously Frivolous Friday Five 200 – we’ve made the 200 mark after reinstating the FFFF on the 1st of August 2014, thank you for all your suggestions and support. Question 1 What is the theme tune to M.A.S.H. called? + Reveal the Funtabulous Answer expand(document.getElemen...
Source: Life in the Fast Lane - Category: Emergency Medicine Authors: Tags: Frivolous Friday Five gummy bears head banging joe lex MASH melkersonn's syndrome rod of asclepius rod of caduceus subdural haematoma suicide is painless Source Type: blogs
Conclusion Conventional radiographs showed the highest accuracy for bone/implant interface diagnosis. However, CBCT scans (i-CAT 0.125 mm voxel), if available or if performed for pre-surgical assessment of another implant site, may provide similar accuracy.
Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology - Category: ENT & OMF Source Type: research
Conclusion: Working length measurement with MDCT scan and other two conventional methods does not show significant difference in measurement. Use of newer 3D imaging technique is useful in root canal treatment for measuring working length.
Source: Journal of Conservative Dentistry - Category: Dentistry Authors: Source Type: research
CONCLUSIONS: For registration of proton radiography data with X-ray CT, the use of a direct ray-tracing algorithm to compute sums of squared differences and corrections of range errors showed very good accuracy and robustness with respect to three confounding factors: measurement noise, calibration error and spot spacing. It is therefore a suitable algorithm to use in the in vivo range verification framework, allowing to separate in post processing the proton range uncertainty due to set-up errors from the other sources of uncertainty. This article is protected by copyright. All rights reserved. PMID: 28771749 [PubMed...
Source: Medical Physics - Category: Physics Authors: Tags: Med Phys Source Type: research
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