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Diagnostic radiographers

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https://www.readbyqxmd.com/read/28339510/3d-dentofacial-photogrammetry-reference-values-a-novel-approach-to-orthodontic-diagnosis
#1
Mohamed I Masoud, Neetu Bansal, Jose C Castillo, Amornrut Manosudprasit, Veerasathpurush Allareddy, Arshan Haghi, Hannah C Hawkins, Erik Otárola-Castillo
Background: Orthodontic diagnostic standards generally use the cranial base as a reference and rely on samples selected by orthodontists. Objective: The purpose of this study was to provide male and female standards for a novel non-radiographic approach for orthodontic diagnosis that utilizes 3D dentofacial photogrammetry using the eyes and natural head orientation as references instead of the cranial base. Methods: One hundred and eighty females and 200 males between the ages of 18 and 35 years from 2 modeling agencies were orthodontically screened for near ideal occlusion...
November 3, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339356/diagnostic-accuracy-of-musculoskeletal-ultrasound-and-conventional-radiography-in-the-assessment-of-the-wrist-triangular-fibrocartilage-complex-in-patients-with-definite-diagnosis-of-calcium-pyrophosphate-dihydrate-deposition-disease
#2
Andrea Di Matteo, Emilio Filippucci, Fausto Salaffi, Marina Carotti, Davide Carboni, Eleonora Di Donato, Walter Grassi
OBJECTIVES: To compare the diagnostic accuracy of musculoskeletal ultrasound (MSUS) and x-ray in evaluating wrist triangular fibrocartilage complex (TFCC) in patients with calcium pyrophosphate dihydrate deposition disease (CPPD) and to investigate the agreement between the extent of the calcium pyrophosphate dihydrate (CPP) crystal deposits assessed by MSUS and the radiographic findings. METHODS: We enrolled 84 patients: 36 patients with "definite" CPPD and 48 controls...
March 23, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28337006/challenges-in-x-ray-diagnosis-a-review-of-referrals-for-specialist-opinion
#3
M Dave, K Horner
The aim of this study was to determine the common reasons why a dental professional might request a second opinion on a dental radiograph from a Dental and Maxillofacial (DMF) radiologist. The study was a retrospective analysis of consecutive referrals for an opinion received by post or email by one DMF radiologist based in a UK dental hospital. The study period was from March 2009 to November 2015. Referrals came from a mixture of sources: mainly from general dental practitioners and specialists working in primary care, but with some referrals from hospital-based practitioners...
March 24, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28336945/x-ray-dark-field-radiography-facilitates-the-diagnosis-of-pulmonary-fibrosis-in-a-mouse-model
#4
Katharina Hellbach, Andre Yaroshenko, Konstantin Willer, Thomas M Conlon, Margarita B Braunagel, Sigrid Auweter, Ali Ö Yildirim, Oliver Eickelberg, Franz Pfeiffer, Maximilian F Reiser, Felix G Meinel
The aim of this study was to evaluate whether diagnosing pulmonary fibrosis with projection radiography can be improved by using X-ray dark-field radiograms. Pulmonary X-ray transmission and dark-field images of C57Bl/6N mice, either treated with bleomycin to induce pulmonary fibrosis or PBS to serve as controls, were acquired with a prototype grating-based small-animal scanner. Two blinded readers, both experienced radiologists and familiar with dark-field imaging, had to assess dark-field and transmission images for the absence or presence of fibrosis...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28330684/mri-for-the-detection-of-calcific-features-of-vertebral-haemangioma
#5
Y Y Bender, S M Böker, G Diederichs, T Walter, M Wagner, E Fallenberg, T Liebig, M Rickert, B Hamm, M R Makowski
AIM: To evaluate the diagnostic performance of susceptibility-weighted-magnetic-resonance imaging (SW-MRI) for the detection of vertebral haemangiomas (VHs) compared to T1/T2-weighted MRI sequences, radiographs, and computed tomography (CT). MATERIALS AND METHODS: The study was approved by the local ethics review board. An SW-MRI sequence was added to the clinical spine imaging protocol. The image-based diagnosis of 56 VHs in 46 patients was established using T1/T2 MRI in combination with radiography/CT as the reference standard...
March 19, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28328823/a-case-report-of-pycnodysostosis-with-atypical-femur-fracture-diagnosed-by-next-generation-sequencing-of-candidate-genes
#6
Hyung Keun Song, Young Bae Sohn, Yong Jun Choi, Yoon-Sok Chung, Ja-Hyun Jang
RATIONALE: Pycnodysostosis is a rare autosomal recessive skeletal dysplasia characterized by short stature, craniofacial dysmorphism, acro-osteolysis, osteosclerosis, and brittle bone with poor healing. Pycnodysostosis results from the deficient activity of cathepsin K, a lysosomal cysteine protease that is encoded by CTSK. PATIENT CONCERNS: We report a Korean adult patient with pycnodysostosis and atypical femur fracture whose diagnosis was confirmed by next-generation sequencing (NGS) of candidate genes...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28324716/postnatal-mri-for-cdh-a-pictorial-review-of-late-presenting-and-recurrent-diaphragmatic-defects
#7
REVIEW
Wendy Kim, Jesse Courtier, Cara Morin, Narendra Shet, Eric Strauch, Jane S Kim
Late-presenting or recurrent diaphragmatic defects can pose a diagnostic challenge due to varying clinical presentations. Current diagnostic approaches include plain film radiograph for initial assessment, with other imaging modalities such as fluoroscopy, ultrasound, CT and MRI mainly utilized for troubleshooting. As a radiation-free modality, MRI can provide a more definitive diagnosis in particular cases due to its ability to visualize discontinuity of the diaphragm, distinguishing it from eventration. MRI can also accurately characterize hernia contents, defect location and size...
March 8, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28323734/radial-probe-ultrasound-guided-cryobiopsy
#8
Ilya G Berim, Ali I Saeed, Ahmed Awab, Adam Highley, Agnes Colanta, Fawad Chaudry
Fluoroscopy-guided transbronchial forceps biopsy has a low diagnostic yield in patients with radiographic suspicion of interstitial lung disease. Cryobiopsy has a higher diagnostic yield likely due to preserved lung architecture and larger biopsies; however, there is an increased risk of major airway bleeding and pneumothorax. Simultaneous use of endobronchial balloon blocker allows for containment of bleeding after cryobiopsy to the affected lobe. In the current article we describe use of radial ultrasound in identification of a target lung parenchyma without a major blood vessel adjacent to distal bronchi...
April 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28323731/thymic-carcinoma-with-endobronchial-metastasis-a-case-report
#9
Makoto Nagamata, Yusuke Okuma, Yukio Hosomi, Tsunekazu Hishima
Thymic carcinoma is a rare cancer, accounting for only 1% to 4% of thymic epithelial tumors. Endobronchial metastasis is a rare presentation of these tumors. A 64-year-old man presented with a cough. Lung cancer was suspected because a chest radiograph showed a 7-cm mass in the left pulmonary hilum. Computed tomography showed a mass in the anterior mediastinum and an infiltrate in the upper lobe of the left lung. Bronchoscopy demonstrated bilateral polypoid tumors in the left B bronchus and the right B bronchus...
April 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28321490/c-reactive-protein-may-misdiagnose-prosthetic-joint-infections-particularly-chronic-and-low-grade-infections
#10
Daniel Pérez-Prieto, María E Portillo, Lluís Puig-Verdié, Albert Alier, Santos Martínez, Lluisa Sorlí, Juan P Horcajada, Joan C Monllau
BACKGROUND: Periprosthetic tissue cultures, sonication and synovial fluid cultures remain the gold standard for prosthetic joint infection (PJI) diagnosis. However, some 15-20% culture-negative PJI are still reported. Therefore, there is the need for other diagnostic criteria. One point of concern relative to the different definitions of PJI is as to the inclusion of the c-reactive protein (CRP) and the erythrocyte sedimentation rate (ESR) as diagnostic criteria for PJI despite them being non-specific inflammatory blood tests...
March 21, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28320359/chronic-cough-conundrum-a-case-report-of-a-new-diagnosis-of-hiv-and-pulmonary-kaposi-s-sarcoma
#11
Pamela P Bailey, Marylou M Dryer, John P Piper, Sajjad Ahmad
BACKGROUND: When evaluating a common complaint such as cough, clinicians should rely on a patient's history and physical to guide them, but also not diverge from guidelines in screening and testing lest certain diagnoses be overlooked. CASE PRESENTATION: A 44 year old Hispanic male presented to a pulmonologist's office after failing multiple courses of antibiotics for chronic cough, now six months in duration. He described intermittent scant hemoptysis and an evanescent migratory non-pruritic rash occasionally noted on his trunk or limbs...
March 20, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28320074/diagnostic-performance-of-clinical-examination-measures-and-pain-presentation-to-identify-patellofemoral-joint-osteoarthritis
#12
J J Stefanik, R Duncan, D T Felson, G Peat
OBJECTIVE: Test the diagnostic performance of a comprehensive set of tests and measures to discriminate patellofemoral (PF) from tibiofemoral (TF) osteoarthritis (OA). METHODS: The Clinical Assessment of the Knee Study is a study of knee pain in the general population. The presence of PF crepitus and pain with PF compression were assessed. Anterior knee pain (AKP) was determined from a knee pain map. Pain with stairs and walking on level ground were assessed with the WOMAC...
March 20, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28317616/review-of-166-gunshot-injury-cases-in-dogs
#13
Hrvoje Capak, Nika Brkljaca Bottegaro, Ana Manojlovic, Ozren Smolec, Drazen Vnuk
The study is aimed to establish predilection signalment and history data, and to investigate clinical findings and risk factors associated with a poor outcome in dogs with projectile injuries. A retrospective study was undertaken of 166 canine cases in which a projectile was found on radiograph in a university׳s diagnostic imaging center more than a 4-year period. The study included dogs with both apparent (obvious recent traumatic event) and incidental (traumatic event unknown to the owner) projectile injury...
December 2016: Topics in Companion Animal Medicine
https://www.readbyqxmd.com/read/28306628/pediatric-spinal-cord-injury-without-radiographic-abnormality-in-the-era-of-advanced-imaging
#14
Caitlin A Farrell, Megan Hannon, Lois K Lee
PURPOSE OF REVIEW: The current review describes the current evidence on pediatric spinal cord injury without radiographic abnormality (SCIWORA) with attention to the definition, epidemiology, and clinical presentation of the condition, as well as common MRI findings, management strategies, and outcomes. RECENT FINDINGS: Recent literature demonstrates that with more widespread MRI use, our understanding of SCIWORA has improved. The new literature, although still limited, provides a more granular conceptualization of patterns of injury as well as potential prognostic stratification of patients based on MRI findings...
March 16, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28304249/diagnosis-and-management-of-polycythemia-vera-in-a-ferret-mustela-putorius-furo
#15
Kim Le, Hugues Beaufrère, Laura L Bassel, Sarah Wills, Delphine Laniesse, Shauna L Blois, Dale A Smith
A 5-y-old female ferret (Mustela putorius furo) was evaluated for diarrhea, anorexia, and lethargy for 1 wk. Only mild dehydration was detected on physical examination. CBC analysis revealed marked erythrocytosis with an unremarkable plasma biochemistry panel; follow-up CBC analyses revealed a consistent primary erythrocytosis. Whole-body radiographs and abdominal ultrasonography were unremarkable except for a small nephrolith in the right kidney and a small cyst in the left kidney. The plasma erythropoietin level was 17...
December 1, 2016: Comparative Medicine
https://www.readbyqxmd.com/read/28301584/diagnostic-accuracy-and-added-value-of-dual-energy-subtraction-radiography-compared-to-standard-conventional-radiography-using-computed-tomography-as-standard-of-reference
#16
Katharina Martini, Marco Baessler, Stephan Baumueller, Thomas Frauenfelder
PURPOSE: To retrospectively evaluate diagnostic performance of dual-energy subtraction radiography (DESR) for interpretation of chest radiographs compared to conventional radiography (CR) using computed tomography (CT) as standard of reference. MATERIAL AND METHODS: A total of 199 patients (75 female, median age 67) were included in this institutional review board (IRB)-approved clinical trial. All patients were scanned in posteroanterior and lateral direction with dual-shot DE-technique...
2017: PloS One
https://www.readbyqxmd.com/read/28301024/comparison-of-cone-beam-computed-tomography-and-intraoral-radiography-in-detection-of-recurrent-caries-under-composite-restorations
#17
Shahin Kasraei, Abbas Shokri, Jalal Poorolajal, Samira Khajeh, Hamid Rahmani
Secondary caries is the most common cause of dental restoration failures. This study aimed to compare the diagnostic accuracy of conventional and digital intraoral radiography and cone beam computed tomography (CBCT) for detection of recurrent caries around composite restorations. mesio-occluso-distal (MOD) cavities were prepared using bur on 45 extracted sound human molar teeth. The teeth were divided into 3 groups. In the control group, cavities were restored with composite resin after etching and bonding (n=15)...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28299236/computer-aided-detection-fidelity-of-pulmonary-nodules-in-chest-radiograph
#18
Nikolaos Dellios, Ulf Teichgraeber, Robert Chelaru, Ansgar Malich, Ismini E Papageorgiou
AIM: The most ubiquitous chest diagnostic method is the chest radiograph. A common radiographic finding, quite often incidental, is the nodular pulmonary lesion. The detection of small lesions out of complex parenchymal structure is a daily clinical challenge. In this study, we investigate the efficacy of the computer-aided detection (CAD) software package SoftView™ 2.4A for bone suppression and OnGuard™ 5.2 (Riverain Technologies, Miamisburg, OH, USA) for automated detection of pulmonary nodules in chest radiographs...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28298944/4-point-ultrasonography-to-confirm-the-correct-position-of-the-nasogastric-tube-in-114-critically-ill-patients
#19
Marianna Zatelli, Norberto Vezzali
PURPOSE: Nasogastric feeding tube is routinely positioned in intensive care units. The complications of misplacement are rare but very dangerous for the patients. The aim of this study is to estimate the diagnostic accuracy of this new technique, 4-point ultrasonography to confirm nasogastric tube placement in intensive care. METHODS: One hundred fourteen critical ill patients monitored in ICU were included. The intensivist provided in real time to perform the exam in four steps: sonography from either the right or left side of the patient's neck to visualize the esophagus, sonography of epigastrium to confirm the passage through the esophagogastric junction and the positioning in antrum, sonography of the fundus...
March 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28297291/evaluation-of-dose-area-product-of-common-radiographic-examinations-towards-establishing-a-preliminary-diagnostic-reference-levels-pdrls-in-southwestern-nigeria
#20
Nnamdi N Jibiri, Christopher J Olowookere
In Nigeria, a large number of radiographic examinations are conducted yearly for various diagnostic purposes. However, most examinations carried out do not have records of doses received by the patients, and the employed exposure parameters used are not documented; therefore, adequate radiation dose management is hindered. The aim of the present study was to estimate the dose-area product (DAP) of patients examined in Nigeria, and to propose regional reference dose levels for nine common examinations (chest PA, abdomen AP, pelvis AP, lumbar AP, skull AP, leg AP, knee AP, hand AP, and thigh AP) undertaken in Nigeria...
November 2016: Journal of Applied Clinical Medical Physics
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