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Diagnostic radiographers

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https://www.readbyqxmd.com/read/29235123/proof-of-principle-of-helium-beam-radiography-using-silicon-pixel-detectors-for-energy-deposition-measurement-identification-and-tracking-of-single-ions
#1
Tim Gehrke, Raya Gallas, Oliver Jäkel, Maria Martišíková
PURPOSE: Hadron therapy has the capability to provide a high dose conformation to tumor regions. However, it requires an accurate target positioning. Thus, the precise monitoring of the patient's anatomical positioning during treatment is desirable. For this purpose, hadron-beam radiography with protons (pRad) and ions (iRad) could be an attractive tool complementing the conventional imaging technologies. On the pathway to an envisaged clinical application, several challenges have to be addressed...
December 12, 2017: Medical Physics
https://www.readbyqxmd.com/read/29233228/disease-and-non-battle-traumatic-injuries-evaluated-by-emergency-physicians-in-a-us-tertiary-combat-hospital
#2
Col S Vikhyat S Bebarta, Alejandra G Mora, Capt Patrick C Ng, Phillip E Mason, Andrew Muck, Maj Joseph K Maddry
Introduction Analysis of injuries during military operations has focused on those related to combat. Non-combat complaints have received less attention, despite the need for many troops to be evacuated for non-battle illnesses in Iraq. This study aims to further characterize the disease and non-battle injuries (DNBIs) seen at a tertiary combat hospital and to describe the types of procedures and medications used in the management of these cases. METHODS: In this observational study, patients were enrolled from a convenience sample with non-combat-related diseases and injuries who were evaluated in the emergency department (ED) of a US military tertiary hospital in Iraq from 2007-2008...
December 13, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/29233110/accounting-for-misclassification-bias-of-binary-outcomes-due-to-underscreening-a-sensitivity-analysis
#3
Nanhua Zhang, Si Cheng, Lilliam Ambroggio, Todd A Florin, Maurizio Macaluso
BACKGROUND: Diagnostic tests are performed in a subset of the population who are at higher risk, resulting in undiagnosed cases among those who do not receive the test. This poses a challenge for estimating the prevalence of the disease in the study population, and also for studying the risk factors for the disease. METHODS: We formulate this problem as a missing data problem because the disease status is unknown for those who do not receive the test. We propose a Bayesian selection model which models the joint distribution of the disease outcome and whether testing was received...
December 12, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/29231036/mucoepidermoid-carcinoma-mimicking-a-mucocele-ranula-in-the-floor-of-the-mouth
#4
Saulo L Sousa Melo, Emily Lanzel, Nitin A Pagedar, Daniah Alhazmi, Laila Dahmoush, Bruno A Policeni, Marcia S Campos
Mucoepidermoid carcinoma (MEC) is the most common salivary gland malignancy. The submandibular gland is rarely involved, about less than 10% of all other major salivary glands. We report a case of a 49 year-old female who presented with a mass on the left side of the floor of the mouth. She was complaining of neck pain for the last 2-3 days and had noticed the mass growing in size and becoming tender to palpation. There was no exacerbation of pain during eating, drinking or opening of mouth. A multidetector computed tomography scan was made...
December 12, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29229417/diagnostic-value-of-computed-tomography-and-risk-factors-for-lateral-hinge-fracture-in-the-open-wedge-high-tibial-osteotomy
#5
O-Sung Lee, Yong Seuk Lee
PURPOSE: The purposes of this study were to evaluate (1) the disparity of detection of lateral hinge fracture (LHF) between postoperative simple radiography and high-resolution computed tomography (CT) and affecting factors of LHF and (2) whether generally recommended postoperative rehabilitation protocols are appropriate according to the type of LHF. METHODS: From 2014 to 2015, patients who underwent primary open wedge high tibial osteotomy (OWHTO) for isolated medial compartment osteoarthritis of the knee joint were retrospectively enrolled...
December 8, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29226512/diagnosis-of-vertical-root-fractures-in-endodontically-treated-teeth-utilising-digital-subtraction-radiography-a-case-series-report
#6
Georgios Mikrogeorgis, Eleni Eirinaki, Vasileios Kapralos, Andreas Koutroulis, Kleoniki Lyroudia, Ioannis Pitas
Vertical root fractures are commonly associated with root-filled teeth. Diagnosis is challenging because the clinical signs are not completely pathognomonic, and conventional periapical radiography is often unreliable. Digital subtraction radiography (DSR) is able to detect small radiographic changes between two successive radiographs by subtracting out consistent radiographic elements. Its use could possibly assist in the diagnostic procedure. Four cases are presented to demonstrate the potential use of DSR in the detection of vertical root fractures in endodontically treated teeth...
December 11, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29217953/assessment-of-pediatrics-radiation-dose-from-routine-x-ray-examination-at-jimma-university-hospital-southwest-ethiopia
#7
Mesfin Zewdu, Elias Kadir, Melkamu Berhane
Background: Given the fact that children are more sensitive to ionizing radiation than adults, with an increased risk of developing radiation-induced cancer, special care should be taken when they undergo X-ray examinations. The main aim of the current study was to determine Entrance Surface Dose (ESD) to pediatric patients arising from routine x-ray examination in the Radiology Department of Jimma University Specialized Hospital (JUSH). Methods: Descriptive cross-sectional study was conducted on pediatric patients less than 15 years of age who visited to seek x-ray examinations in JUSH...
September 2017: Ethiopian Journal of Health Sciences
https://www.readbyqxmd.com/read/29217944/analysis-and-economic-implication-of-x-ray-film-reject-in-diagnostic-radiology-department-of-jimma-university-specialized-hospital-southwest-ethiopia
#8
Mesfin Zewdu, Elias Kadir, Melkamu Berhane
Background: Patients usually undergo repeated X-ray examinations after their initial X-ray radiographs are rejected due to poor image quality. This subjects the patients to excess radiation exposure and extra cost.It is therefore investigating the magnitude and causes of reject is mandatory. This study aimed to assess the reject rate of X-ray films and its economic implication in order to obtain information for further recommendations on image quality, cost and radiation exposure. Method: A cross-sectional study approaches was employed...
July 2017: Ethiopian Journal of Health Sciences
https://www.readbyqxmd.com/read/29216919/the-acutely-injured-acromioclavicular-joint-which-imaging-modalities-should-be-used-for-accurate-diagnosis-a-systematic-review
#9
Jonas Pogorzelski, Knut Beitzel, Francesco Ranuccio, Klaus Wörtler, Andreas B Imhoff, Peter J Millett, Sepp Braun
BACKGROUND: The management of acute acromioclavicular (AC) joint injuries depends on the degree of injury diagnosed by the Rockwood classification. Inadequate imaging and not selecting the most helpful imaging protocols can often lead to incorrect diagnosis of the injury. A consensus on a diagnostic imaging protocol for acute AC joint injuries does not currently exist. Therefore we conducted a systematic review of the literature considering three diagnostic parameters for patients with acromioclavicular (AC) joint injuries: 1) Assessment of vertical instability; 2) Assessment of horizontal instability; 3) Benefit of weighted panoramic views...
December 8, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29216699/-diagnostic-value-of-a-predictive-model-for-complete-ruptures-of-the-rotator-cuff-associated-to-subacromial-impingement
#10
I R Águila-Ledesma, J L Córdova-Fonseca, O Medina-Pontaza, D A Núñez-Gómez, C Calvache-García, J M Pérez-Atanasio, R Torres-González
Pathology related to the rotator cuff remains among the most prevalent musculoskeletal diseases. There is an increasing need for imaging studies (MRI, US, arthroscopy) to test the diagnostic performance of the medical history and physical examination. OBJECTIVE: To prove the diagnostic value of a clinical-radiographic predictive model to find complete ruptures of the rotator cuff. MATERIAL AND METHODS: Descriptive, observational, prospective, transversal and analytical study...
May 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/29215711/triage-tools-for-detecting-cervical-spine-injury-in-pediatric-trauma-patients
#11
REVIEW
Annelie Slaar, M M Fockens, Junfeng Wang, Mario Maas, David J Wilson, J Carel Goslings, Niels Wl Schep, Rick R van Rijn
BACKGROUND: Pediatric cervical spine injury (CSI) after blunt trauma is rare. Nonetheless, missing these injuries can have severe consequences. To prevent the overuse of radiographic imaging, two clinical decision tools have been developed: The National Emergency X-Radiography Utilization Study (NEXUS) criteria and the Canadian C-spine Rule (CCR). Both tools are proven to be accurate in deciding whether or not diagnostic imaging is needed in adults presenting for blunt trauma screening at the emergency department...
December 7, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29214064/bronchoscopy-for-the-diagnosis-of-peripheral-lung-lesions
#12
REVIEW
Samjot Singh Dhillon, Kassem Harris
Peripheral pulmonary lesions (PPLs) are generally considered as lesions in the peripheral one-third of the lung although a precise definition and radiographic anatomical landmarks separating central and peripheral lesion does not yet exist. The radiographic detection of such lesions has increased significantly with the adoption of lung cancer screening programs. These lesions are not directly visible by regular flexible bronchoscopes as they are usually distal to the lobar and segmental bronchi. Traditionally, depending on location and clinical stage at presentation, these lesions were typically sampled by computerized tomography (CT) guided needle or surgical biopsy although some centers also used ultrasound and fluoroscopy guided percutaneous needle biopsy...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29208727/an-unusual-case-of-abdominal-pain-and-hyponatremia-in-a-16-year-old-girl-with-disordered-eating
#13
Grace Hunter, Rebecca Blankenburg, Jennifer Andrews, Terrell Stevenson
A previously healthy 16-year-old girl presented to the emergency department with 1 week of severe, diffuse abdominal pain and constipation, as well as several episodes of nonbloody, nonbilious emesis. Her symptoms began several days after she decreased her caloric intake in an attempt to lose weight. She had been drinking 48 to 60 oz of water per day for several days before admission in an attempt to ameliorate her constipation. She also admits to drinking alcohol the night before her pain began. She had visited several other emergency departments before her presentation to our hospital, and she had been sent home on a bowel regimen without amelioration of her symptoms...
December 5, 2017: Pediatrics
https://www.readbyqxmd.com/read/29207437/unfavourable-outcome-of-glucocorticoid-treatment-in-suspected-idiopathic-pulmonary-fibrosis
#14
Ivo A Wiertz, Wim A Wuyts, Coline H M van Moorsel, Adriane D M Vorselaars, Hendrik W van Es, Matthijs F M van Oosterhout, Jan C Grutters
BACKGROUND AND OBJECTIVE: The diagnostic classification of 'possible idiopathic pulmonary fibrosis (posIPF)' is characterized by a radiological pattern of inconsistent usual interstitial pneumonia (UIP) on high-resolution computed tomography (HRCT) scan and a UIP pattern in surgical lung biopsy (SLB). The evidence base to guide treatment for patients with posIPF is lacking; the clinician must choose between observation, treatment with immunomodulatory agents or anti-fibrotic agents. METHODS: To evaluate outcomes of immunomodulatory treatment, a multicentre cohort of 59 posIPF patients treated with prednisone was analysed retrospectively...
December 5, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29205875/a-case-report-of-basic-calcium-phosphate-mimicking-septic-arthritis
#15
Queenie Luu, Siroos Nasibi, Praneal Sharma, Andrew Bonura, David Massasso
We report a case of a 53-year-old man who presented with a diagnostic dilemma mimicking septic arthritis. It is important to consider the diagnosis of calcific peri-arthritis clinically and recognize the hallmarks on radiograph and magnetic resonance imaging as this disease process resolves completely with conservative management like in our patient, and does not require operative intervention.
December 4, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29203263/use-of-shoulder-imaging-in-the-outpatient-setting-a-pilot-study
#16
Elisabeth R Garwood, Gregory S Mittl, Michael J Alaia, James Babb, Soterios Gyftopoulos
PURPOSE: Characterize the clinical utility of diagnostic shoulder imaging modalities commonly used in the outpatient workup of shoulder pain. MATERIALS/METHODS: Retrospective review of adults imaged for outpatient shoulder pain from 1/1/2013 to 9/1/2015. To be categorized as "useful", a study had to meet one of the following criteria: change the clinical diagnosis or treatment plan, provide a final diagnosis, or guide definitive treatment. A utility score was assigned to each study based on the number of utility criteria met (range 0-4)...
November 4, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/29199508/wrist-inflammation-a-retrospective-comparison-between-septic-and-non-septic-arthritis
#17
Gavrielle Kang, Mabel Q H Leow, Shian-Chao Tay
This study aims to identify differences in demographics, clinical and laboratory data between wrist septic arthritis and non-septic arthritis in patients admitted for wrist inflammation. A retrospective review of inpatients from May 2012 to April 2015 was conducted. Seventy-seven patients were included. Non-septic arthritis patients were more likely to have chronic kidney disease, pre-existing gout, or both. All septic arthritis patients had normal serum uric acid levels, and two or more raised inflammatory markers (white cell count, C-reactive protein, erythrocyte sedimentation rate)...
January 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/29198076/early-diagnosis-of-osteoporosis-using-radiogrammetry-and-texture-analysis-from-hand-and-wrist-radiographs-in-indian-population
#18
A S Areeckal, N Jayasheelan, J Kamath, S Zawadynski, M Kocher, S David S
We propose an automated low cost tool for early diagnosis of onset of osteoporosis using cortical radiogrammetry and cancellous texture analysis from hand and wrist radiographs. The trained classifier model gives a good performance accuracy in classifying between healthy and low bone mass subjects. INTRODUCTION: We propose a low cost automated diagnostic tool for early diagnosis of reduction in bone mass using cortical radiogrammetry and cancellous texture analysis of hand and wrist radiographs...
December 3, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/29197346/radiographic-features-of-ollier-s-disease-two-case-reports
#19
Jamshid Sadiqi, Najibullah Rasouly, Hidayatullah Hamidi, Salahuddin Siraj
BACKGROUND: Ollier's disease is a non-hereditary, benign bone tumor which is usually characterized by presence of multiple radiolucent lesions (enchondromas) in the metaphysis of long bones with unilateral predominance. The disease is a rare clinical entity with 1/100000 occurrence in early childhood. Patients mostly present with multiple hard swellings and deformity of the tubular bones specially hands and feet with leg discrepancy and pathologic fractures. CASE PRESENTATION: We present two cases of Ollier's disease in a 13 years old female and 8 years old boy which had no specific symptoms...
December 2, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/29193813/a-case-report-of-brown-tumor-in-a-patient-with-chronic-renal-failure-and-renal-cell-carcinoma
#20
Yong-Jun Liu, Elizabeth E Frauenhoffer, Eric Walker, Nicole C Williams
We report a case of a 72 year old male with hyperparathyroidism secondary to end stage diabetic renal disease and coexisting bilateral chromophobe renal cell carcinomas. The patient presented with back and groin pain, right pelvic hemorrhage, and multiple lytic bone lesions concerning for metastatic renal cell carcinoma. Fine needle aspiration cytology demonstrated benign appearing osteoclasts and spindled cells. A concurrent core biopsy showed foci of spindled cell proliferation populated by osteoclast-like giant cells with stromal hemorrhage without evidence of metastatic carcinoma...
November 29, 2017: Diagnostic Cytopathology
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