Cone Beam Computed Tomography Evaluation of Inverted Mesiodentes

Source: Journal of Dentistry for Children - Category: Dentistry Authors: Tags: Case Reports Source Type: research

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Authors: Hekmatian E, Karbasi Kheir M, Fathollahzade H, Sheikhi M Abstract Background: Vertical root fractures (VRFs) can significantly reduce dental prognosis. Cone-beam computed tomography (CBCT) offers better visualization of VRF than conventional radiography. However, gutta-percha creates artifacts in cone-beam CT (CBCT) images and reduces the diagnosis quality. The purpose of this study was to evaluate the accuracy of CBCT in detection of VRF in presence and absence of gutta-percha in canals. Materials and Methods: In this cross-sectional study, 50 extracted mandibular premolars were selected. After prepar...
Source: The Scientific World Journal - Category: Science Tags: ScientificWorldJournal Source Type: research
Publication date: Available online 18 August 2018Source: Journal of Forensic Radiology and ImagingAuthor(s): James V. Schanandore, Jonathan M. Ford, Summer J. Decker
Source: Journal of Forensic Radiology and Imaging - Category: Radiology Source Type: research
ConclusionMolar protraction with mini-screw anchorage produces higher stresses at head of mini-screw that may affect its stability and can even lead to its fracture.
Source: Journal of the World Federation of Orthodontists - Category: Dentistry Source Type: research
ConclusionIntraoperative CT allows highly reliable navigation registration with low radiation exposure.
Source: Acta Neurochirurgica - Category: Neurosurgery Source Type: research
ConclusionIn this retrospective cohort study, we could conclude that a delay from initial diagnosis confirming a CSDH to surgical evacuation had no negative effect on outcome when surgery was performed within the time frames and on patients with pre-operatively favorable GCS scores ( ≥ 13) outlined in our study.
Source: Acta Neurochirurgica - Category: Neurosurgery Source Type: research
Authors: Xu Y, Yu S, Zhang L, Zheng J, Chen Y, Che Y Abstract Application value of iterative reconstruction with computed tomographic angiography (CTA) in the patients with intractable headache was investigated. One hundred and eighty patients with headache, who were admitted and treated in Cangzhou Central Hospital, were selected to undergo CTA scan. The patients were divided into group A, B and C according to different scanning conditions and data reconstruction techniques. In group A, the scanning parameters were 120 kV and 300 mA, and filtered back projection (FBP) algorithm was used for data reconstruction. In...
Source: Experimental and Therapeutic Medicine - Category: General Medicine Tags: Exp Ther Med Source Type: research
This study compared the utility of plasma D-dimer levels for diagnosing PE with that of CTPA (gold standard). This was a retrospective analysis of 32 consecutive patients with suspected PE at the Affiliated Hospital of Yan'an University between OctoberC 2010 and March 2011. Blood was sampled before thrombolytic therapy was administered. D-dimer levels were measured using an automatic system. CTPA was used to diagnose PE and was performed within 48 h of blood sampling using a Siemens Somatom Sensation 64 computed tomography (CT) scanner. ROC curve analysis was performed to evaluate the diagnostic utility of D-dimer levels, ...
Source: Experimental and Therapeutic Medicine - Category: General Medicine Tags: Exp Ther Med Source Type: research
Publication date: Available online 17 August 2018Source: European Journal of RadiologyAuthor(s): Yukihiro Nagatani, Masashi Takahashi, Mitsuru Ikeda, Norihisa Nitta, Katsunori Miyata, Jun Hanaoka, Yasutaka Nakano, Satoru Matsuo, Yuto Hamada, Akinaga Sonoda, Hideji Otani, Noritoshi Ushio, Shinichi Ohta, Yoko Murakami, Chiaki Kaneko, Akitoshi Inoue, Tetsuo Kida, Kiyoshi MurataAbstractPurpose To compare sub-solid nodules detectability (SSND) between ultra-low-dose chest digital tomosynthesis (ULD-CDT) with/without iterative reconstruction (IR) and chest radiography (CR) by using low-dose computed tomography (LDCT) as the stan...
Source: European Journal of Radiology - Category: Radiology Source Type: research
We report a rare case of giant periosteal osteoblastoma in the femur of a 21-year-old male. The patient presented with a painful, firm, non-tender mass in his left thigh. The pain was worse at night and was temporarily relieved with NSAIDS. He had no fevers, night sweats, or weight loss. The patient underwent preoperative radiological studies including plain radiographs, MRI, bone scan, and CT scan. An open biopsy was subsequently performed that was consistent with an aggressive, epithelioid osteoblastoma. Pathology demonstrated a neoplasm characterized by cohesive sheets of epithelioid osteoblasts, mixed with areas of con...
Source: Skeletal Radiology - Category: Radiology Source Type: research
ConclusionIntravenous iodinated contrast medium in children with congenital heart disease caused transient thyroid-stimulating hormone decrease 48  h after CT, with thyroid-stimulating hormone returning to normal range at discharge.
Source: Pediatric Radiology - Category: Radiology Source Type: research
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