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https://www.readbyqxmd.com/read/28086907/identification-of-the-main-determinants-of-abdominal-aorta-size-a-screening-by-pocket-size-imaging-device
#1
Roberta Esposito, Federica Ilardi, Vincenzo Schiano Lomoriello, Regina Sorrentino, Vincenzo Sellitto, Giuseppe Giugliano, Giovanni Esposito, Bruno Trimarco, Maurizio Galderisi
BACKGROUND: Ultrasound exam as a screening test for abdominal aorta (AA) can visualize the aorta in 99% of patients and has a sensitivity and specificity approaching 100% in screening settings for aortic aneurysm. Pocket Size Imaging Device (PSID) has a potential value as a screening tool, because of its possible use in several clinical settings. Our aim was to assess the impact of demographics and cardiovascular (CV) risk factors on AA size by using PSID in an outpatient screening. METHODS: Consecutive patients, referring for a CV assessment in a 6 months period, were screened...
January 13, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28079239/prevalence-of-dyspeptic-symptoms-and-heartburn-of-adults-in-belo-horizonte-brazil
#2
Alessandra Maciel Almeida, Luísa Alvarenga Guerra Martins, Patrícia Liz Terenzi Cunha, Viviane Willig Brasil, Lucas Galuppo Fernandes Félix, Maria do Carmo Friche Passos
BACKGROUND: - Medical literature has shown dyspepsia and heartburn-related symptoms occur among 15% to 40% of the population. These symptoms can occur at any age and are more prevalent in women. OBJECTIVE: - Investigate the prevalence of dyspeptic symptoms and heartburn among individuals over 18. METHODS: - Individuals over 18 were randomly selected in public venues in Belo Horizonte/MG to participate. A standardized questionnaire that included questions related to social-demographic characteristics, eating habits, digestive symptoms, medical appointments, medications, exams, previous surgeries and comorbidities was applied...
January 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28073207/intraoperative-ultrasound-guided-enucleation-of-testicular-nodule
#3
Riccardo Boschian, Giovanni Liguori, Stefano Bucci, Michele Bertolotto, Carlo Trombetta
OBJECTIVE: We report a case of enucleation of a non-palpable right testicular lesion found incidentally at testicular ultrasonography during investigations in a patient with azoospermia. MATERIALS AND METHODS: In 2011 bilateral hypoechoic nonpalpable testicular lesions (5 mm and 3 mm to the right, 3 mm to the left) were found in a 28 years old patient, during diagnostic investigations for azoospermia. In March 2016, ultrasonography showed that the diameter of the right major nodule had grown to 12 mm, characterized by increased vascularization and increased texture...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28070213/lower-gastrointestinal-bleeding-computed-tomographic-angiography-colonoscopy-or-both
#4
Daniel Clerc, Fabian Grass, Markus Schäfer, Alban Denys, Nicolas Demartines, Martin Hübner
BACKGROUND: Lower endoscopy (LE) is the standard diagnostic modality for lower gastrointestinal bleeding (LGIB). Conversely, computed tomographic angiography (CTA) offers an immediate non-invasive diagnosis visualizing the entire gastrointestinal tract. The aim of this study was to compare these 2 modalities with regards to diagnostic value and bleeding control. METHODS: Tertiary center retrospective analysis of consecutive patients admitted for LGIB between 2006 and 2012...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28060689/-schwannoma-of-the-upper-extremity-retrospective-analysis-of-17-cases
#5
Ângelo Sá, Leandro Nobre Azevedo, Luísa Cunha
INTRODUCTION: Schwannoma or neurilemmoma is a benign peripheric nerve tumor that usually presents as a slow growing single lesion; it has origin in Schwann cells proliferation. Although it represents a small percentage of the benign tumors of the upper arm, it is the most frequent of neural origin. We present a retrospective study of upper limb schwannomas; our aim is establish the appropriate preoperative approach, to recognise the efficiency of the treatment and the pos-operative follow-up...
September 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28051829/apophyseal-and-epiphyseal-knee-injuries-in-the-adolescent-athlete
#6
P Persiani, F M Ranaldi, A Formica, M Mariani, O Mazza, M Crostelli, C Villani
OBJECTIVES: In the context of pediatric sports injuries, the epiphyseal and apophyseal knee fractures represent rather peculiar lesions. The most frequently involved anatomical area is the knee. The peculiar function of the physis and the need to preserve their integrity, makes choosing what treatment methods to employ very important. Objective of this study is to assess the kind and the effectiveness of the most suitable treatment in the apophyseal and epiphyseal knee lesions occurring in the adolescents...
November 2016: La Clinica Terapeutica
https://www.readbyqxmd.com/read/28048871/mo-f-204-00-preparing-for-the-abr-diagnostic-and-nuclear-medical-physics-exams
#7
Nicholas Bevins
: Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048685/tu-d-201-08-experience-complying-with-the-joint-commission-element-of-performance-on-radiation-dose-index-monitoring
#8
M P Supanich
PURPOSE: A new Joint Commission element of performance effective July 2015 requires incidents where the radiation dose index exceeds a defined level be reviewed, analyzed and compared to external benchmarks. This work offers a comprehensive review of the CT exams in which the notification level was exceeded and the reason at one academic medical center. This review may help other institutions set reference levels at clinically relevant values. METHODS: Radiation Dose Structured Reports from each of the 5 diagnostic CT scanners at our institution are automatically sent to our radiation dose index monitoring software platform, Radimetrics from Bayer Healthcare...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048218/mo-f-204-01-preparing-for-part-1-of-the-abr-diagnostic-physics-exam
#9
S McKenney
: Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048064/mo-f-204-04-preparing-for-parts-2-3-of-the-abr-nuclear-medicine-physics-exam
#10
R MacDougall
: Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047841/tu-h-207a-04-how-patient-positioning-in-ct-affects-more-than-the-aec-image-noise-uniformity-and-ct-number-changes-as-a-function-of-positioning
#11
T Szczykutowicz, A Duplissis, D Miller
PURPOSE: Studies dealing with patient positioning in CT have mainly dealt with dose and image noise changes. For diagnosis, only dose decreases can negatively affect the diagnostic utility of the exam via an increase in image noise. However, a little studied consequence of poor positioning is CT number and noise uniformity changes. METHODS: An anthropomorphic phantom was imaged in 2 cm vertical steps between the highest and lowest couch positions. CT number and noise were measured using regions of interest (ROI) in the upper-thorax, mid-thorax, and abdomen...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047768/th-ab-207a-06-the-use-of-realistic-phantoms-to-predict-ct-dose-to-pediatric-patients
#12
D Carver, S Kost, P Segars, N Fraser, D Pickens, R Price, M Stabin
PURPOSE: To predict pediatric patient dose from diagnostic CT scans using Monte Carlo simulation of realistic reference phantoms of various ages, weights, and heights. METHODS: A series of deformable pediatric reference phantoms using Non-Uniform Rational B-Splines (NURBS) was developed for a large range of ages, percentiles, and reference anatomy. Individual bones were modeled using age-dependent factors, and red marrow was modeled as functions of age and spatial distribution based on Cristy1...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047567/mo-f-204-02-preparing-for-part-2-of-the-abr-diagnostic-physics-exam
#13
T Szczykutowicz
: Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046933/su-g-206-17-radshield-semi-automated-shielding-design-for-ct-using-ncrp-147-and-isodose-curves
#14
M DeLorenzo, I Rutel, K Yang, D Wu
PURPOSE: Computed tomography (CT) exam rooms are shielded more quickly and accurately compared to manual calculations using RadShield, a semi-automated diagnostic shielding software package. Last year, we presented RadShield's approach to shielding radiographic and fluoroscopic rooms calculating air kerma rate and barrier thickness at many points on the floor plan and reporting the maximum values for each barrier. RadShield has now been expanded to include CT shielding design using not only NCRP 147 methodology but also by overlaying vendor provided isodose curves onto the floor plan...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046917/mo-f-204-03-preparing-for-part-3-of-the-abr-diagnostic-physics-exam
#15
J Zambelli
: Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046907/su-g-iep3-01-better-kerma-area-product-kap-estimation-using-the-system-parameters-in-radiography-and-fluoroscopy
#16
D Kim, R MacDougall
PURPOSE: Accurate values for Kerma-Area-Product (KAP) are needed for patient dosimetry and quality control for exams utilizing radiographic and/or fluoroscopic imaging. The KAP measured using a typical direct KAP meter built with parallel-plate transmission ionization chamber is not precise and depends on the energy spectrum of diagnostic x-rays. This study compared the accuracy and reproducibility of KAP derived from system parameters with values measured with a direct KAP meter. METHODS: IEC tolerance for displayed KAP is specified up to ± 35% above 2...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046867/su-f-p-06-moving-from-computed-radiography-to-digital-radiography-a-collaborative-approach-to-improve-image-quality
#17
D Sandoval, D Valenti, T Bateman, V Norris, G Mlady, R Selwyn
PURPOSE: To bring together radiologists, technologists, and physicists to utilize post-processing techniques in digital radiography (DR) in order to optimize image acquisition and improve image quality. METHODS: Sub-optimal images acquired on a new General Electric (GE) DR system were flagged for follow-up by radiologists and reviewed by technologists and medical physicists. Various exam types from adult musculoskeletal (n=35), adult chest (n=4), and pediatric (n=7) were chosen for review...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046796/su-f-p-53-radshield-semi-automated-shielding-design-for-ct-using-ncrp-147-and-isodose-curves
#18
M DeLorenzo, I Rutel, K Yang, D Wu
PURPOSE: Computed tomography (CT) exam rooms are shielded more quickly and accurately compared to manual calculations using RadShield, a semi-automated diagnostic shielding software package. Last year, we presented RadShield's approach to shielding radiographic and fluoroscopic rooms calculating air kerma rate and barrier thickness at many points on the floor plan and reporting the maximum values for each barrier. RadShield has now been expanded to include CT shielding design using not only NCRP 147 methodology but also by overlaying vendor provided isodose curves onto the floor plan...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046338/th-ab-207a-04-assessment-of-patients-cumulative-effective-dose-from-ct-examinations
#19
M Bostani, C Cagnon, A Sepahdari, K Beckett, T Oshiro, M McNitt-Gray
PURPOSE: The Joint Commission requires institutions to consider patient's age and recent imaging exams when deciding on the most appropriate type of imaging exam. Additionally, knowing patient's imaging history can help prevent duplicate scans. Radiation dose management software affords new opportunities to identify and utilize patients with high cumulative doses as one proxy for subsequent review of imaging history and opportunities in avoiding redundant exams. METHODS: Using dose management software (Radimetrics, Bayer Healthcare) a total of 72073 CT examinations performed from Jan 2015 to Jan 2016 were examined to categorize patients with a cumulative effective dose of 100 mSv and above...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28044260/summary-of-the-proceedings-of-the-international-forum-2016-imaging-referral-guidelines-and-clinical-decision-support-how-can-radiologists-implement-imaging-referral-guidelines-in-clinical-routine
#20
(no author information available yet)
: The International Forum is held once a year by the ESR and its international radiological partner societies with the aim to address and discuss selected subjects of global relevance in radiology. In 2016, the issue of implementing imaging referral guidelines in clinical routine was analysed. The legal environment in the USA requires that after January 1, 2017, physicians must consult government-approved, evidence-based appropriate-use criteria through a clinical decision support system when ordering advanced diagnostic imaging exams...
January 2, 2017: Insights Into Imaging
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