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https://www.readbyqxmd.com/read/28811353/the-omeract-rheumatoid-arthritis-magnetic-resonance-imaging-mri-scoring-system-updated-recommendations-by-the-omeract-mri-in-arthritis-working-group
#1
Mikkel Østergaard, Charles G Peterfy, Paul Bird, Frédérique Gandjbakhch, Daniel Glinatsi, Iris Eshed, Espen A Haavardsholm, Siri Lillegraven, Pernille Bøyesen, Bo Ejbjerg, Violaine Foltz, Paul Emery, Harry K Genant, Philip G Conaghan
OBJECTIVE: The Outcome Measures in Rheumatology (OMERACT) Rheumatoid Arthritis (RA) Magnetic Resonance Imaging (MRI) scoring system (RAMRIS), evaluating bone erosion, bone marrow edema/osteitis, and synovitis, was introduced in 2002, and is now the standard method of objectively quantifying inflammation and damage by MRI in RA trials. The objective of this paper was to identify subsequent advances and based on them, to provide updated recommendations for the RAMRIS. METHODS: MRI studies relevant for RAMRIS and technical and scientific advances were analyzed by the OMERACT MRI in Arthritis Working Group, which used these data to provide updated considerations on image acquisition, RAMRIS definitions, and scoring systems for the original and new RA pathologies...
August 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28800442/pre-trained-convolutional-neural-networks-as-feature-extractors-for-tuberculosis-detection
#2
U K Lopes, J F Valiati
It is estimated that in 2015, approximately 1.8 million people infected by tuberculosis died, most of them in developing countries. Many of those deaths could have been prevented if the disease had been detected at an earlier stage, but the most advanced diagnosis methods are still cost prohibitive for mass adoption. One of the most popular tuberculosis diagnosis methods is the analysis of frontal thoracic radiographs; however, the impact of this method is diminished by the need for individual analysis of each radiography by properly trained radiologists...
August 4, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28799804/morphologic-features-of-spontaneous-annular-tears-and-disc-degeneration-in-the-aging-sand-rat-psammomys-obesus-obesus
#3
H E Gruber, E N Hanley
The sand rat, a member of the gerbil family, is a valuable small animal model in which intervertebral disc degeneration occurs spontaneously as the animal ages. Radiographic features of cervical and lumbar degeneration resemble those in human spines. We conducted a retrospective analysis of spines of 140 animals 3-41 months old focusing specifically on the presence of annular tears that are not visible by radiography and have not been described previously in the sand rat disc. During degeneration of the nucleus pulposus, notochordal cell death occurs and granular material, which stains with Alcian blue for proteoglycans, accumulates...
August 11, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28774455/conventional-radiology-in-rheumatoid-arthritis
#4
REVIEW
Eva Llopis, Herman M Kroon, Jose Acosta, Johan L Bloem
In clinical practice, the conventional radiography is still the radiologic method for the diagnosis of rheumatoid arthritis (RA). Moreover, it provides a quick overview of the symptomatic joints to narrow the differential diagnosis and to evaluate progression. RA is a polyarticular disease with bilateral and symmetric involvement of the peripheral joints, especially small joints, and less frequently, the cervical spine. The radiologic features are soft tissue swelling, periarticular osteoporosis, erosions, loss of joint space, and in advanced disease, osteolysis and typical subluxations or deformities, such as ulnar deviation...
September 2017: Radiologic Clinics of North America
https://www.readbyqxmd.com/read/28774450/imaging-in-osteoarthritis
#5
REVIEW
Daichi Hayashi, Frank W Roemer, Mohamed Jarraya, Ali Guermazi
With technologic advances and the availability of sophisticated computer software and analytical strategies, imaging plays an increasingly important role in understanding the disease process of osteoarthritis (OA). Radiography has limitations in that it can visualize only limited features of OA, such as osteophytes and joint space narrowing, but remains the most commonly used modality for establishing an imaging-based diagnosis of OA. This article describes the roles and limitations of different imaging modalities and discusses the optimum imaging protocol, imaging diagnostic criteria of OA, differential diagnoses, and what the referring physician needs to know...
September 2017: Radiologic Clinics of North America
https://www.readbyqxmd.com/read/28733847/posterior-only-approach-for-fifth-lumbar-corpectomy-indications-and-technical-notes
#6
Belal Elnady, Ahmad Shawky, Hamdan Abdelrahman, Essam Elmorshidy, Mohamed El-Meshtawy, Galal Zaki Said
PURPOSE: To evaluate the efficacy and safety of a posterior-only approach for L5 corpectomy, with lumbopelvic fixation for treatment of secondaries, infections, or burst fractures. METHODS: Between 2010 and 2013, 17 patients with L5 pathology had corpectomy through a posterior-only approach, with reconstruction of the anterior column using titanium cages filled with bone graft. The indication for surgery was presence of secondaries in nine patients, spondylitis and spondylodiscitis in five patients and burst fractures due to high energy trauma in three patients...
July 21, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28725645/imaging-bronchopulmonary-dysplasia-a-multimodality-update
#7
REVIEW
Thomas Semple, Mohammed R Akhtar, Catherine M Owens
Bronchopulmonary dysplasia is the most common form of infantile chronic lung disease and results in significant health-care expenditure. The roles of chest radiography and computed tomography (CT) are well documented but numerous recent advances in imaging technology have paved the way for newer imaging techniques including structural pulmonary assessment via lung magnetic resonance imaging (MRI), functional assessment via ventilation, and perfusion MRI and quantitative imaging techniques using both CT and MRI...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28685007/utility-of-plain-radiographs-in-metabolic-bone-disease-a-case-based-pictorial-review-from-a-tertiary-centre
#8
REVIEW
Jyoti Panwar, Ashish Jacob Mathew, Nancy Jindal, Debashish Danda
In this era of advanced high-tech imaging, the utility of plain radiographs in conditions of the bone is increasingly being overseen by both clinicians and radiologists. Plain radiography is the first-line, essential screening or diagnostic tool for diverse bone diseases, where magnetic resonance imaging (MRI) may be non-contributory. Plain radiographs often play a pivotal role in diagnosing metabolic bone disorders. This paper from a single tertiary care centre discusses ten real-life patients with metabolic bone conditions and other bone diseases with near-normal MRI of the spine, in whom plain radiographs revealed subtle findings and aided in making diagnoses...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28589160/flexion-posteroanterior-radiographs-affect-both-enrollment-for-and-outcomes-after-injection-therapy-for-knee-osteoarthritis
#9
Maximilian A Meyer, Timothy S Leroux, David M Levy, Annemarie K Tilton, Paul B Lewis, Adam B Yanke, Brian J Cole
BACKGROUND: Knee injection therapy is less effective for severe osteoarthritis (OA), specifically Kellgren-Lawrence (KL) grade 4. Patient selection for knee injection trials has historically been based on extension anteroposterior (AP) radiographic evaluation; however, emerging evidence suggests that KL grading using a flexion posteroanterior (PA) radiograph more accurately and reproducibly predicts disease severity. The impact of radiographic view on patient selection and outcome after knee injection therapy remains unknown...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28576269/canine-hip-dysplasia-diagnostic-imaging
#10
REVIEW
J Ryan Butler, Jennifer Gambino
Diagnostic imaging is the principal method used to screen for and diagnose hip dysplasia in the canine patient. Multiple techniques are available, each having advantages, disadvantages, and limitations. Hip-extended radiography is the most used method and is best used as a screening tool and for assessment for osteoarthritis. Distraction radiographic methods such as the PennHip method allow for improved detection of laxity and improved ability to predict future osteoarthritis development. More advanced techniques such as MRI, although expensive and not widely available, may improve patient screening and allow for improved assessment of cartilage health...
July 2017: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/28547205/update-on-the-operative-treatment-of-scapholunate-instability-for-radiologists-ii-salvage-procedures-total-wrist-arthrodesis-and-total-wrist-arthroplasty
#11
REVIEW
Kimia Khalatbari Kani, Hyojeong Mulcahy, Jack Porrino, Daluiski Aaron, Felix S Chew
Scapholunate (SL) instability is the most common form of carpal instability. Imaging (especially radiography) plays an important role in the staging, management, and postoperative follow-up of SL instability. In the final stage of SL instability, known as scapholunate advanced collapse, progressive degenerative changes occur at the carpal level. The goals of this article are to review the surgical options available for addressing the different stages of scapholunate advanced collapse, along with an emphasis on normal postoperative imaging and complications associated with each surgical option...
August 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28529656/imaging-modalities-in-patients-with-slipped-capital-femoral-epiphysis
#12
T Hesper, C Zilkens, B Bittersohl, R Krauspe
BACKGROUND: Slipped capital femoral epiphysis (SCFE) is a frequent disorder of the adolescent hip, which may lead to avascular necrosis (AVN) of the femoral head, chondrolysis and early osteoarthritis due to the post-slip deformity of the proximal femur. To warrant the best possible outcome for the affected (and contralateral) hip, early diagnosis and proper treatment are needed. METHODS: A review of the literature was undertaken to identify today's role of available imaging modalities in the management of SCFE...
April 2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28509506/anti-inflammatory-and-regenerative-effects-of-albanian-propolis-in-experimental-vital-amputations
#13
Aida Meto, Agron Meto, Bora Bimbari, Kastriot Shytaj, Mutlu Özcan
This study evaluated the effects of Albanian propolis on the inflamed pulpal tissue after pulpotomy in piglets. In five piglets, two teeth each were infected using special pathogenic microbial flora that was prepared in advance in order to cause inflammation of the pulp. Pulpotomy was performed in the maxillary and mandibular central and lateral incisors. Microbial flora pathogenesis prepared from the section of infected teeth, containing Staphylococcus aureus, Streptococcus viridans, Enterococcus faecalis, Staphylococcus albus and mixed flora were used to cause artificial pulpitis...
September 2016: European Journal of Prosthodontics and Restorative Dentistry
https://www.readbyqxmd.com/read/28483547/changes-in-emergency-department-imaging-perspectives-from-national-patient-surveys-over-two-decades
#14
Andrew B Rosenkrantz, Tarek N Hanna, James S Babb, Richard Duszak
PURPOSE: To use patient-generated data to assess the changing role of emergency department (ED) imaging for a spectrum of clinical indications. METHODS: The Household Component Emergency Room Visits File was obtained from 1996 through 2014 for the Medical Expenditure Panel Survey, a nationally representative survey of US households. Percentage of visits associated with various imaging modalities was computed annually, stratified by respondents' self-reported primary condition during the visit...
May 5, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28413480/analysis-of-the-mechanism-by-which-nerve-growth-factor-promotes-callus-formation-in-mice-with-tibial-fracture
#15
Xi-Guang Sang, Zhi-Yong Wang, Lin Cheng, Yan-Hong Liu, Yong-Gang Li, Tao Qin, Kai Di
The aim of the present study was to analyze the mechanism by which nerve growth factor (NGF) promotes callus formation in mice with tibial fracture. NGF transgenic homozygotic mice and NGF wild homozygotic mice were selected to construct non-stabilized fracture model of tibia. The mice were sacrificed on days 7, 14 and 21, respectively, and each group had a sample with 8 mice at each point in time. X-ray radiography and safranin fast green were used to observe fracture healing and in situ hybridization was used to examine the NGF mRNA expression of tibia at each phase of fracture healing...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28390547/image-acquisition-in-general-radiography-the-utilisation-of-ddr
#16
C M Hayre, A Eyden, S Blackman, K Carlton
OBJECTIVE: This article explores image acquisition with DDR. General radiographic technology continues to advance therefore it remains paramount to continually reflect on DDR hardware and software amongst radiographers in an imaging modality that constitutes approximately 90% of all radiological examinations. METHOD: This article reports findings from a wider ethnographic study of two general radiography environments in the United Kingdom (UK). Participant observation and semi-structured interviews were the methods used to uncover original data...
May 2017: Radiography
https://www.readbyqxmd.com/read/28361579/dementia-and-clinical-interaction-in-frontline-radiography-mapping-the-practical-experiences-of-junior-clinicians-in-the-uk
#17
Paul K Miller, Lisa Booth, Adam Spacey
This paper reports findings from a study of the practical experiences of junior diagnostic radiographers in the UK when managing patients with dementia. Extended semi-structured interviews with six participants (mean experience in diagnostic radiography = 3.5 years) were analysed using interpretative phenomenological analysis. Findings highlight that participants' recurrently cited lack of confidence around their knowledge of dementia, and regular treatment of the condition as a 'generic' thing in practice, had sometimes damaged clinical interaction, particularly when the participant was feeling institutional time pressures...
January 1, 2017: Dementia
https://www.readbyqxmd.com/read/28355130/value-of-whole-body-magnetic-resonance-imaging-for-screening-multifocal-osteonecrosis-in-patients-with-polymyositis-dermatomyositis
#18
Huang Zhen-Guo, Yang Min-Xing, Chen Xiao-Liang, Yan Ran, Chen He, Gao Bao-Xiang, Yin Li-Guo, Shi Kai-Ning, Queenie Chan, Wang Guo-Chun
OBJECTIVE: To assess the value of coronal short-tau inversion recovery whole-body MRI (STIR-WBMRI) for screening osteonecrosis in patients with polymyositis (PM)/dermatomyositis (DM). METHODS: The imaging and medical records of 129 patients with PM/DM who met the Bohan and Peter diagnostic criteria were retrospectively analyzed. STIR-WBMRI was performed in all patients. 18 patients had follow-up STIR-WBMRI. 12 patients underwent regional knee and/or hip MRI while 25 patients underwent radiography of the lower extremities...
May 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28327144/computational-medical-imaging-and-hemodynamics-framework-for-functional-analysis-and-assessment-of-cardiovascular-structures
#19
REVIEW
Kelvin K L Wong, Defeng Wang, Jacky K L Ko, Jagannath Mazumdar, Thu-Thao Le, Dhanjoo Ghista
Cardiac dysfunction constitutes common cardiovascular health issues in the society, and has been an investigation topic of strong focus by researchers in the medical imaging community. Diagnostic modalities based on echocardiography, magnetic resonance imaging, chest radiography and computed tomography are common techniques that provide cardiovascular structural information to diagnose heart defects. However, functional information of cardiovascular flow, which can in fact be used to support the diagnosis of many cardiovascular diseases with a myriad of hemodynamics performance indicators, remains unexplored to its full potential...
March 21, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28298819/diagnostic-accuracy-of-cone-beam-computed-tomography-in-identification-and-postoperative-evaluation-of-furcation-defects
#20
Natasha Pajnigara, Abhay Kolte, Rajashri Kolte, Nilufer Pajnigara, Vrushali Lathiya
BACKGROUND: Decision-making in periodontal therapeutics is critical and is influenced by accurate diagnosis of osseous defects, especially furcation involvement. Commonly used diagnostic methods such as clinical probing and conventional radiography have their own limitations. Hence, this study was planned to evaluate the dimensions of furcation defects clinically (pre- and post-surgery), intra-surgically, and by cone beam computed tomography (CBCT) (pre- and post-surgery). MATERIALS AND METHODS: The study comprised a total of 200 Grade II furcation defects in forty patients, with a mean age of 38...
July 2016: Journal of Indian Society of Periodontology
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