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https://www.readbyqxmd.com/read/28076010/foreign-bodies-on-lateral-neck-radiographs-in-adults-imaging-findings-and-common-pitfalls
#1
Alba Castán Senar, Laura E Dinu, José M Artigas, Raquel Larrosa, Ylenia Navarro, Elena Angulo
Foreign-body (FB) ingestion is less common in adults than in children, but still occurs. Diagnostic management of patients with suspected FB ingestion in emergency departments depends on FB type and location, both of which are related to the patient profile. In adults, fish and chicken bones are the most common FB types, and the oropharynx and cricopharyngeal muscle are the most common locations. Once accidentally swallowed, an FB may become lodged in the oropharynx, and in such cases indirect or fiberoptic laryngoscopy is the first clinical management option...
January 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28072616/gastrointestinal-stromal-tumor-showing-intense-tracer-uptake-on-psma-pet-ct
#2
Benjamin Noto, Matthias Weckesser, Boris Buerke, Michaela Pixberg, Nemanja Avramovic
A 70-year-old man with suspected prostate cancer was referred for Ga-PSMA-HBED-CC PET/CT (short PSMA PET/CT) for staging of tumor extent. Apart from vivid tracer uptake in the prostate gland and osseous metastasis, PSMA PET/CT revealed a large soft tissue mass with calcifications in the left upper abdomen showing intense tracer uptake. Histologic examination revealed the mass to be a gastrointestinal stromal tumor.
January 9, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28064345/osseous-metastases-of-chordoma-imaging-and-clinical-findings
#3
Connie Chang, Ivan Chebib, Martin Torriani, Miriam Bredella
PURPOSE: To describe the imaging and clinical characteristics of chordoma osseous metastases (COM). MATERIALS AND METHODS: Our study was IRB approved and HIPAA compliant. A retrospective search of our pathology database for pathology-proven COM yielded 15 patients who had undergone MRI, CT, bone scan, and/or FDG-PET/CT. The imaging and clinical features of the COMs were recorded. A control group of age and gender matched chordoma patients without osseous metastasis was evaluated...
January 7, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28048364/we-fg-207a-01-introduction-to-dedicated-breast-ct-early-studies
#4
S Vedantham
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047717/we-fg-207a-02-why-we-need-breast-ct-clinical-perspective
#5
A O'Connell
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047520/we-fg-207a-05-dedicated-breast-ct-as-a-diagnostic-imaging-tool-physics-and-clinical-feasibility
#6
A Karellas
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047068/we-fg-207a-03-low-dose-cone-beam-breast-ct-physics-and-technology-development
#7
J Boone
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047013/we-de-207b-12-scatter-correction-for-dedicated-cone-beam-breast-ct-based-on-a-forward-projection-model
#8
L Shi, S Vedantham, A Karellas, L Zhu
PURPOSE: The image quality of dedicated cone-beam breast CT (CBBCT) is fundamentally limited by substantial x-ray scatter contamination, resulting in cupping artifacts and contrast-loss in reconstructed images. Such effects obscure the visibility of soft-tissue lesions and calcifications, which hinders breast cancer detection and diagnosis. In this work, we propose to suppress x-ray scatter in CBBCT images using a deterministic forward projection model. METHOD: We first use the 1st-pass FDK-reconstructed CBBCT images to segment fibroglandular and adipose tissue...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046408/we-fg-207a-04-performance-characteristics-of-photon-counting-breast-ct
#9
W Kalender
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046291/we-fg-207a-00-advances-in-dedicated-breast-ct
#10
Srinivasan Vedantham, Sabee Molloi
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28033050/silver-nitrate-interpreted-as-osseous-pathology-on-radiographstwo-case-reports
#11
Jared Clifford
Silver nitrate is often used topically for hemostasis. When radiography is performed after the application of silver nitrate, an artifact appears on the radiograph that may be mistaken for an abnormal calcification or a foreign body. The patients in the following two cases were treated with topical silver nitrate. In each case, radiographs taken after treatment seemed to demonstrate abnormal soft-tissue calcifications in the area of silver nitrate application. Subsequent clinical examination revealed no calcifications, and it was determined that the abnormal radiographic findings were silver nitrate artifacts...
November 2016: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28027747/imaging-findings-of-kaposiform-hemangioendothelioma-in-children
#12
Young Jin Ryu, Young Hun Choi, Jung-Eun Cheon, Woo Sun Kim, In-One Kim, Ji Eun Park, Yu Jin Kim
PURPOSE: Kaposiform hemangioendothelioma (KHE) is a rare, aggressive vascular tumor that typically occurs during infancy or early childhood. Though several case reports have discussed the imaging findings of KHE, larger comprehensive studies are lacking. The purpose of this study was to evaluate the imaging findings of KHE in children. MATERIALS AND METHODS: A total of twelve cases of pathologically proven KHE were collected by searching our institution's pathology database for children diagnosed between January 2004 and April 2016 (6 male, 6 female; median age: 3 months; age range 7days - 18 years)...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28012893/matrix-gla-protein-an-extracellular-matrix-protein-regulates-myostatin-expression-in-the-muscle-developmental-program
#13
Sarafraz Ahmad, Arif Tasleem Jan, Mohammad Hassan Baig, Eun Ju Lee, Inho Choi
AIM: Skeletal muscle development involves interactions between intracellular and extracellular factors that act in concert to regulate the myogenic process. Matrix gla protein (MGP), a well-known inhibitor of calcification in soft tissues, has been reported to be highly up-regulated during myogenesis. Our interest in the regulation of muscle satellite cells (MSCs) by extracellular matrix (ECM) genes led us to investigate the effects of MGP during the progression of myogenesis. METHODOLOGY: Participation of MGP in the myogenic process was investigated in vitro using C2C12 cells, and knockdown of its gene was performed to determine its effects on the expression of myogenic regulatory factors (MRFs) and other ECM genes...
December 21, 2016: Life Sciences
https://www.readbyqxmd.com/read/27966253/treatment-of-a-soft-tissue-calcification-in-a-patient-receiving-peritoneal-dialysis
#14
Kristine Lindhard, Bo Broberg, Henrik Groenberg, Henrik Post Hansen
Chronic Kidney Disease patients suffer from Mineral and Bone Disorder (CKD-MBD) leading to increased vascular and soft-tissue calcification. The prevalence of soft tissue calcification in dialysis patients is not well described, and most cases describe such calcifications in hemodialysis patients. We describe a case of a massive soft tissue calcification in the right gluteal region in a peritoneal dialysis patient. The patient had severe pain and were disabled. The treatment was converted to an intensive hemodialysis regimen with a minimal calcium load and high dose of cinacalcet...
December 14, 2016: Hemodialysis International
https://www.readbyqxmd.com/read/27957702/imaging-of-plantar-fascia-disorders-findings-on-plain-radiography-ultrasound-and-magnetic-resonance-imaging
#15
REVIEW
Ferdinando Draghi, Salvatore Gitto, Chandra Bortolotto, Anna Guja Draghi, Gioia Ori Belometti
Plantar fascia (PF) disorders commonly cause heel pain and disability in the general population. Imaging is often required to confirm diagnosis. This review article aims to provide simple and systematic guidelines for imaging assessment of PF disease, focussing on key findings detectable on plain radiography, ultrasound and magnetic resonance imaging (MRI). Sonographic characteristics of plantar fasciitis include PF thickening, loss of fibrillar structure, perifascial collections, calcifications and hyperaemia on Doppler imaging...
December 12, 2016: Insights Into Imaging
https://www.readbyqxmd.com/read/27936890/incidental-findings-in-the-skeletal-musculature-on-computed-tomography
#16
Dominik Schramm, Annkathrin Justus, Andreas Gunter Bach, Alexey Surov
OBJECTIVE: The purpose of this study was to analyze intramuscular incidental findings identified on computed tomography (CT) in a large patients cohort. METHODS: In the time period from 2010 to 2015 a total of 44 794 patients with several diagnoses were investigated by CT. Only patients, who underwent body CT including the neck, thorax, abdomen and pelvic regions after intravenous application of contrast medium were involved in the study. There were 4085 patients...
December 12, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27931782/radiographic-presentation-of-musculoskeletal-involvement-in-werner-syndrome-adult-progeria
#17
A David, M Vincent, P P Arrigoni, S Barbarot, M A Pistorius, B Isidor, E Frampas
Werner syndrome (i.e., adult progeria) is a rare autosomal recessive disorder caused by mutations of the WRN gene, which is characterized by the premature appearance of features associated with normal aging and cancer predisposition. Patients with Werner syndrome can present with musculoskeletal complaints, associated with suggestive radiographic features with a potential prognostic or therapeutic impact. This review illustrates the main radiographic features of Werner syndrome, focusing on the musculoskeletal system, such as soft-tissue calcification, muscular atrophy, osteoporosis, foot deformities, osteitis and osteomyelitis, and bone or soft-tissues malignancies...
December 5, 2016: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/27920874/leiomyoma-of-deep-soft-tissue-mimicking-calcific-myonecrosis
#18
Valerie A Fitzhugh, Cornelia Wenokor, Kathleen S Beebe, Seena C Aisner
Leiomyoma of deep soft tissue is an unusual entity reported in less than 60 cases in the English literature. The lesion is now accepted as a rare neoplasm. Leiomyomata of deep soft tissue have been divided into 2 groups, those occurring primarily in women in the retroperitoneum, histologically similar to leiomyomata of the uterus, and those occurring equally in both sexes in the somatic deep soft tissues. Irrespective of location, these lesions can demonstrate calcification, and even less commonly ossification...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27914184/the-potential-use-of-ultrasound-magnetic-resonance-imaging-fusion-applications-in-musculoskeletal-intervention
#19
Christopher J Burke, Jenny Bencardino, Ronald Adler
We sought to assess the potential use of an application allowing real-time ultrasound spatial registration with previously acquired magnetic resonance imaging in musculoskeletal procedures. The ultrasound fusion application was used to perform a range of outpatient procedures including piriformis, sacroiliac joint, pudendal and intercostal nerve perineurial injections, hamstring-origin calcific tendonopathy barbotage, and 2 soft tissue biopsies at our institution in 2015. The application was used in a total of 7 procedures in 7 patients, all of which were technically successful...
January 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27902956/usefulness-of-cervical-computed-tomography-and-magnetic-resonance-imaging-for-rapid-diagnosis-of-crowned-dens-syndrome-a-case-report-and-review-of-the-literature
#20
Akihiro Inoue, Kanehisa Kohno, Satoko Ninomiya, Hitomi Tomita, Shinji Iwata, Shiro Ohue, Kenji Kamogawa, Kensho Okamoto, Shinya Fukumoto, Haruhisa Ichikawa, Shinji Onoue, Saya Ozaki, Bungo Okuda
INTRODUCTION: Crowned dens syndrome is a rare disease entity which radiologically shows calcification of the cruciform ligament around the odontoid process. We report a patient with crowned dens syndrome who improved dramatically in 5days following treatment with oral nonsteroidal anti-inflammatory medication. PRESENTATION OF CASE: A 61-year-old man was admitted to our hospital with a severe occipital headache and sudden onset of neck stiffness. Neurological examination on admission revealed a high fever and cervical rigidity...
November 23, 2016: International Journal of Surgery Case Reports
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