C-shaped canals in mandibular molars of a Brazilian subpopulation: prevalence and root canal configuration using cone-beam computed tomography

ConclusionsC-shaped root canals were more prevalent in mandibular second molars and in females. Additionally, clinicians should bear in mind the greater possibility of C-shaped configuration in mandibular molars with fused roots.Clinical relevanceMandibular molars with C-shaped canals present a clinical challenge. A higher C-shaped proportion was noted in radiographic fused root types, which had 17.2 higher odds of presenting such anatomy when compared to radiographic non-fused roots. Root radiographic features may help in diagnosis of complex C-shaped morphologies.
Source: Clinical Oral Investigations - Category: Dentistry Source Type: research

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This study aimed to investigate a series of patients diagnosed with LTBI during screening before immunosuppressive therapy, describing how the use of diagnostic tests and treatment evolved over time. This retrospective cohort study included all individuals diagnosed with LTBI during screening before intended immunosuppressive therapy in a tertiary care hospital between January 2000 and December 2017. Evidence for LTBI, including history, tuberculin skin test (TST), QuantiFERON (QFT) result and suggestive lesions on chest radiography (CXR), and CT scan if available, was analyzed. The study included 295 individuals with LTBI...
Source: European Journal of Clinical Microbiology and Infectious Diseases - Category: Microbiology Source Type: research
Conclusions3-dimensional printing technique-assisted arthroscopic bone graft and fixation of scaphoid nonunion constitute an effective and accurate clinical treatment option.
Source: Journal of Orthopaedic Translation - Category: Orthopaedics Source Type: research
Publication date: April 2020Source: Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology, Volume 20Author(s): Adinun Apivatgaroon, Suthee Tharakulphan, Pinkawas Kongmalai, Bancha ChernchujitAbstractBackgroundA hooked acromion on an outlet view and a keeled acromion on Rockwood tilt radiographs are associated with rotator cuff tears. The identification of the acromial morphology may be helpful for acromioplasty planning with regarding the acromial types.MethodsDescriptive Laboratory Study. Three-dimensional computed tomography scans models of 108 shoulders in 91 patients with; (1) Normal shoul...
Source: Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology - Category: Sports Medicine Source Type: research
We report herein a case of mediastinal actinomycosis mimicking lung malignanc y presented with recurrent lymphocyte‐predominant pleural fluid exudate. In patients with a recurrent or unexplained exudative pleural effusion, it may be worthwhile to consider a hidden foci of actinomycosis.
Source: Respirology Case Reports - Category: Respiratory Medicine Authors: Tags: Case Report Source Type: research
ConclusionsOur report demonstrates one of the longest involvement of extensive contiguous CTSTB who was treated with one-stage posterior-only approach. However, as this is only a report of one case, further studies are required to investigate the safety and efficacy of such approach for treating extensive CTSTB.
Source: International Journal of Surgery Case Reports - Category: Surgery Source Type: research
Abstract OBJECTIVE: Achieving fusion at the lumbosacral junction poses many technical challenges. No data exist in the literature comparing radiographic or clinical outcomes between the different surgical techniques of transsacral fixation (TSF) with rods and transforaminal lumbar interbody fusion (TLIF) in conjunction with iliac fixation. The purpose of this study was to compare the clinical outcomes and radiographic fusions of TSF to TLIF in patients with adult spinal deformity undergoing long fusions across the lumbosacral junction. METHODS: Patients with primary adult spinal deformity who underwent long f...
Source: Journal of Neurosurgery.Spine - Category: Neurosurgery Authors: Tags: J Neurosurg Spine Source Type: research
Tibial slope measurements are important in guiding clinical decisions in the field of orthopedic surgery. However, there are multiple techniques across different medical imaging modalities and little is known about its impact on result and validity of the measurement. Therefore, the purpose of this study was to compare tibial slope measurements from lateral radiographs, magnetic resonance imaging (MRI) and computed tomography (CT) scans in order to better assess the clinical significance of measured tibial slope values.
Source: The Knee - Category: Orthopaedics Authors: Source Type: research
Publication date: Available online 11 February 2020Source: The Annals of Thoracic SurgeryAuthor(s): Brian Sun, Mohamed K. Kamel, Abu Nasar, Sebron Harrison, Benjamin Lee, Jeffrey L. Port, Nasser K. Altorki, Brendon M. StilesAbstractBackgroundStapling across lung-parenchyma may lead to tissue-granulation which could be confused radiographically with recurrence. We sought to define the time-course and radiographic characteristics of such thickening and to determine association with recurrence.MethodsPatients who underwent limited-resection for NSCLC were included. Surveillance CT-scans were reviewed to characterize the morph...
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
We describe a case of a staphylococcal lung abscess in a teenage girl with CF who presented with a two-week history of non-specific malaise followed by two days of left posterior chest pain and fever. A chest radiograph was consistent with a left sided pulmonary abscess, which was confirmed on a CT scan of the chest. The abscess was drained under ultrasound guidance and cultured methicillin-sensitive Staphylococcus aureus. The patient responded well to antibiotic treatment with the abscess cavity showing complete radiological resolution by six weeks post drainage.
Source: Respiratory Medicine Case Reports - Category: Respiratory Medicine Source Type: research
For the optimisation of radiation dose in computed tomography (CT), dose reduction is attempted while preserving diagnostic performance. To reduce the overall radiation dose related to CT, the dose from scout radiography may be reduced by decreasing the tube voltage and tube current. We evaluated the effects of scout imaging conditions on CT radiation dose. An anthropomorphic chest phantom was imaged on two CT scanners (scanners A and B) from different vendors, manipulating the scout imaging conditions in terms of imaging direction, tube voltage and tube current, and assessed the tube current modulation in subsequent...
Source: Journal of Radiological Protection - Category: Physics Authors: Source Type: research
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