Occlusal fissures in equine cheek teeth: µCT and histological findings

This study suggests that fissures can provide a pathway for microorganisms to enter the dentinal tubules, potentially resulting in local pulpal inflammation. It appears that in healthy teeth, vital odontoblasts react by producing reactionary (tertiary) dentin, which lacks patent tubules and thus provides a proper seal.
Source: The Veterinary Journal - Category: Veterinary Research Source Type: research

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AbstractSummaryLumbar spine volumetric bone mineral density (BMD) measured using quantitative computed tomography (QCT) can discriminate between postmenopausal women with low areal BMD with and without vertebral fractures. QCT provides a 3D measure of BMD, excludes the vertebral posterior elements and accounts for bone size. This knowledge could contribute to effective treatment targeting of patients with low BMD.IntroductionWe evaluated the ability of lumbar spine bone mineral apparent density (BMAD), trabecular bone score (TBS) and volumetric bone mineral density (vBMD) to discriminate between postmenopausal women with l...
Source: Osteoporosis International - Category: Orthopaedics Source Type: research
Condition:   Patellofemoral Dislocation Interventions:   Diagnostic Test: CT scan of the knee under weight-bearing with the Cone Beam Computed Tomography (CBCT) scanner system.;   Diagnostic Test: Conventional CT scan Sponsor:   Istituto Ortopedico Rizzoli Recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
We report a case of a diagnostic dilemma in a patient with pulmonary melioidosis which radiologically mirrored a bronchogenic carcinoma with mediastinal lymphadenopathy. Such findings were observed in a Computed Tomography (CT) scan (Thorax) and Positron Emission Tomography (PET) scan (Body) in a previously healthy 57-year-old man with no significant medical risk factors for melioidosis other than his previous exposures to soil during outfield military training in Thailand, 37 and 28 years ago. He presented with acute symptoms of dry cough, pleuritic pain and fever. A CT Scan thorax revealed a left lower lobe mass with lef...
Source: Respiratory Medicine Case Reports - Category: Respiratory Medicine Source Type: research
ConclusionsThe XP-endo Finisher instrument promoted better distribution of irrigant throughout the root canal system, especially in the apical canal segment, when compared to PUI. However, the tested approaches did not differ as to the ability to drive irrigants into the isthmus area.Clinical relevanceThis study highlighted that the XP-endo Finisher instrument presented a better performance to distribute irrigant throughout the root canal system, especially in the apical canal segment compared to positive pressure irrigation and PUI.
Source: Clinical Oral Investigations - Category: Dentistry Source Type: research
Patients at risk for osteoporotic fractures can be identified through their...Read more on AuntMinnie.comRelated Reading: AI accurately detects vertebral fractures on CT AAOS: QCT finds low bone density in lumbar fusion patients 3D DEXA enhances hip fracture risk prediction USPSTF reaffirms osteoporosis screening Vertebral CAD aces detection of compression fractures
Source: AuntMinnie.com Headlines - Category: Radiology Source Type: news
The vertical intensity distribution of synchrotron-based X-ray beams usually has a Gaussian profile encompassing large intensity variations. For biomedical imaging applications this may entail sub-optimal dose distributions and large fluctuations in terms of image noise. Commonly, planar metallic filters coupled with absorbing slits systems are applied to adjust the delivered flux and to limit intensity variations, respectively. The latter results in a reduction of the effective beam size. A flattening filter that counterbalances the transverse inhomogeneity, while retaining a sufficient flux, has been developed in the con...
Source: Journal of Synchrotron Radiation - Category: Physics Authors: Tags: beam filtering breast computed tomography Gaussian beam short communications Source Type: research
AbstractBackgroundThe purpose of this study is to investigate the performance of dual-layer detector spectral CT for iron deposition compared to magnetic resonance imaging (MRI) T2* imaging.MethodsThirty-one patients with a clinical history of myelodysplastic syndromes and aplastic anemia underwent liver and cardiac T2*-weighted unenhanced MRI on a three-tesla MRI scanner, and underwent unenhanced CT scan laterally on a 128-row spectral detector CT. R2* values of the liver, septal muscle, and paraspinal muscle were calculated. Attenuation differences ( ΔH) in the liver and myocardium were calculated between the lower...
Source: Japanese Journal of Radiology - Category: Radiology Source Type: research
AbstractPurpose of ReviewThe aim of this review is to sum up the state of the art of urachal carcinoma (UC) in order to easily guide clinicians.Recent FindingsUC is a rare and aggressive disease with consequent few data about diagnosis and treatment. Dates are mainly based on retrospective trial and case reports with limited prospective trial. Clinical presentation is not specific, often with urinary symptoms. Diagnosis is mainly based on CT scan and MRI, useful to evaluate local invasion and nodal status and to detect the presence of distant metastases. Therefore, biopsy is needed to obtain histological confirmation. Surg...
Source: Current Oncology Reports - Category: Cancer & Oncology Source Type: research
Conclusion: It may be employed either alone or in combination with cryotherapy, existing chemotherapy, bypass surgery or radiations to achieve the optimal results in these patients. Nevertheless, there is a need to formulate a uniform dose and procedure to achieve homogeneity and develop references for clinical practices. PMID: 31977258 [PubMed - as supplied by publisher]
Source: International Journal of Radiation Biology - Category: Radiology Tags: Int J Radiat Biol Source Type: research
Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter, please visit: https://www.fightaging.org/newsletter/ Longevity Industry Consulting Services Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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