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Calcification

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https://www.readbyqxmd.com/read/28230608/specialized-imaging-and-procedures-in-pediatric-pancreatology-a-north-american-society-for-pediatric-gastroenterology-hepatology-and-nutrition-clinical-report
#1
Tom K Lin, David M Troendle, Daniel B Wallihan, Bradley Barth, Victor L Fox, Douglas S Fishman, Veronique D Morinville
OBJECTIVES: An increasing number of children are being diagnosed with pancreatitis and other pancreatic abnormalities. Dissemination of the information regarding existing imaging techniques and endoscopic modalities to diagnose and manage pancreatic disorders in children is sorely needed. METHODS: We conducted a review of the medical literature on the use of the following imaging and procedural modalities in pediatric pancreatology: transabdominal ultrasonography (TUS), computed tomography (CT), magnetic resonance imaging (MRI)/magnetic resonance cholangiopancreatography (MRCP), endoscopic ultrasonography (EUS), and endoscopic retrograde cholangiopancreatography (ERCP)...
March 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28230494/application-of-tem-techniques-for-the-study-of-vascular-calcification-monitoring-extracellular-vesicles-and-nanogold-immunodetection-of-fetuin-a-grp-and-cd9
#2
Rute Morais, Carla S B Viegas, Dina C Simes, António P A Matos, Anjos L Macedo
No abstract text is available yet for this article.
January 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28230466/dysregulated-fetuin-mineral-complexes-are-linked-to-vascular-calcification-in-chronic-kidney-disease-the-role-of-gla-rich-protein
#3
Carla S B Viegas, Anjos L Macedo, Rute Morais, Lúcia Santos, António P A Matos, Ana P Silva, Pedro Neves, Dina C Simes
No abstract text is available yet for this article.
January 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28229565/calcifying-tendinitis-of-the-long-head-of-the-biceps-brachii-and-superior-labrum-a-report-of-one-case-and-literature-review
#4
Xing-He Xue, Zhen-Hua Feng, Zhen-Xing Li, Xiao-Yun Pan
INTRODUCTION: Calcifying tendinitis of the shoulder is characterized with the formation of the calcium deposits in tendon, which mostly involves supraspinatus. The formation of the calcium deposits may be related to the excessive mechanical stimulation and non-tenocytes generation from tendon stem cell. The disease is usually associated with pain, especially when activating the shoulder. MATERIALS AND METHODS: We describe one case of calcifying tendinitis involving the long head of the biceps brachii and superior labrum...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28229226/pericoronary-adipose-tissue-ratio-is-a-stronger-associated-factor-of-plaque-vulnerability-than-epicardial-adipose-tissue-on-coronary-computed-tomography-angiography
#5
Ryo Okubo, Rine Nakanishi, Mikihito Toda, Daiga Saito, Ippei Watanabe, Takayuki Yabe, Hideo Amano, Tatsushi Hirai, Takanori Ikeda
This study was designed to clarify the influence of pericoronary adipose tissue (PAT) on plaque vulnerability using coronary computed tomography angiography (CCTA). A total of 103 consecutive patients who underwent CCTA and subsequent percutaneous coronary intervention (PCI) using intravascular ultrasound (IVUS) for coronary artery disease were enrolled. The PAT ratio was calculated as the sum of the perpendicular thickness of the visceral layer between the coronary artery and the pericardium, or the coronary artery and the surface of the heart at the PCI site, divided by the PAT thickness without a plaque in the same vessel...
February 22, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28228905/calciphylaxis-on-bone-scan-correlation-between-molecular-and-cross-sectional-findings
#6
Malak Itani, Manuela Matesan, Sanaz Behnia, Saeed Elojeimy
Calciphylaxis is a rare devastating medical condition commonly associated with end-stage renal disease and characterized by extensive microvascular calcifications. We describe a case of calciphylaxis presenting on Tc-99m MDP bone scan imaging with asymmetric radiotracer uptake within the lower extremities corresponding to extensive soft tissue calcifications on Computed tomography. Familiarity with the classic clinical presentation and imaging features of this rare entity may help its early identification and treatment...
March 2017: Radiology case reports
https://www.readbyqxmd.com/read/28228904/bone-scan-findings-in-calcific-tendinitis-at-the-gluteus-maximus-insertion-some-illustrative-cases
#7
Karel Van Damme, Liesbeth De Coster, Koen Mermuys, Anja Van den Eeckhaut, Natascha Walgraeve, Frank De Geeter
We describe the bone scan and single-photon emission computed tomography/computed tomography findings in calcific tendinitis of the gluteus maximus and discuss its pathophysiology. Although this tendinopathy is mostly self-limiting, awareness of this disease is important for 2 reasons. First, it may explain acute hip symptoms in patients in the resorptive phase of the calcifications. Second, it should be considered as a differential diagnosis for bone scan hot spots in the vicinity of the gluteus maximus tendon and for cortical erosion seen in that region on X-rays or CT...
March 2017: Radiology case reports
https://www.readbyqxmd.com/read/28228797/femoral-neck-s-fracture-in-fahr-s-syndrome-case-report
#8
Marcello Sallì, Antonio D'Arienzo, Mariella Bonanno, Salvatore Morello, Antonino Sanfilippo, Giulia Letizia Mauro, Michele D'Arienzo
Fahr's syndrome, also known as "Bilateral Striopallidodentate Calcinosis" (BSPDC) primitive, is a rare neurological disease characterized by the presence of idiopathic, bilateral, symmetrical and abnormal deposition of calcium in areas of the brain that control movements including the basal ganglia, dentate nuclei of the cerebellum, nuclei of thalamus and semi-oval center. We describe a case of a 76-year-old male patient underwent reduction and fixation of a subtrochanteric fracture with intramedullary nail...
September 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/28228792/malabsorption-syndrome-as-a-rare-cause-of-nephrocalcinosis
#9
Rui Abreu, Cláudia Bento, Luís Oliveira, Teresa Morgado
Nephrocalcinosis is characterized by calcification of kidney parenchyma and can be caused by an increased amount of calcium, phosphate or oxalate in urinary excretion. We report a 35-year-old female with nephrocalcinosis. She had fitful steatorrhea since last year. Physical examination was normal. Analytic exams found normal renal function and ionogram. Primary hyperparathyroidism, renal tubular acidosis and sarcoidosis were excluded. Urinalysis showed mild hematuria, without proteinuria and 24-hour urine collection exhibited hyperoxaluria...
September 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/28228443/noncanonical-wnts-at-the-cusp-of-fibrocalcific-signaling-processes-in-human-calcific-aortic-valve-disease
#10
EDITORIAL
Cecilia M Giachelli, Mei Y Speer
No abstract text is available yet for this article.
March 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28227428/calcification-detection-of-abdominal-aorta-in-ct-images-and-3d-visualization-in-vr-devices
#11
Jose A Garcia-Berna, Juan M Sanchez-Gomez, Judith Hermanns, Gines Garcia-Mateos, Jose L Fernandez-Aleman, Jose A Garcia-Berna, Juan M Sanchez-Gomez, Judith Hermanns, Gines Garcia-Mateos, Jose L Fernandez-Aleman, Jose L Fernandez-Aleman, Jose A Garcia-Berna, Judith Hermanns, Juan M Sanchez-Gomez, Gines Garcia-Mateos
Automatic calcification detection in abdominal aorta consists of a set of computer vision techniques to quantify the amount of calcium that is found around this artery. Knowing that information, it is possible to perform statistical studies that relate vascular diseases with the presence of calcium in these structures. To facilitate the detection in CT images, a contrast is usually injected into the circulatory system of the patients to distinguish the aorta from other body tissues and organs. This contrast increases the absorption of X-rays by human blood, making it easier the measurement of calcifications...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226684/simplified-computer-aided-detection-scheme-of-microcalcification-clusters-in-digital-breast-tomosynthesis-images
#12
Ji-Wook Jeong, Seung-Hoon Chae, Eun Young Chae, Hak Hee Kim, Young Wook Choi, Sooyeul Lee, Ji-Wook Jeong, Seung-Hoon Chae, Eun Young Chae, Hak Hee Kim, Young Wook Choi, Sooyeul Lee, Sooyeul Lee, Ji-Wook Jeong, Hak Hee Kim, Eun Young Chae, Young Wook Choi, Seung-Hoon Chae
A computer-aided detection (CADe) algorithm for clustered microcalcifications (MCs) in reconstructed digital breast tomosynthesis (DBT) images is suggested. The MC-like objects were enhanced by a Hessian-based 3D calcification response function, and a signal-to-noise ratio (SNR) enhanced image was also generated to screen the MC clustering seed objects. A connected component segmentation method was used to detect the cluster seed objects, which were considered as potential clustering centers of MCs. Bounding cubes for the accepted clustering seed candidate were generated and the overlapping cubes were combined and examined...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223407/polygenic-risk-score-identifies-subgroup-with-higher-burden-of-atherosclerosis-and-greater-relative-benefit-from-statin-therapy-in-the-primary-prevention-setting
#13
Pradeep Natarajan, Robin Young, Nathan O Stitziel, Sandosh Padmanabhan, Usman Baber, Roxana Mehran, Samantha Sartori, Valentin Fuster, Dermot F Reilly, Adam S Butterworth, Daniel J Rader, Ian Ford, Naveed Sattar, Sekar Kathiresan
Background -Relative risk reduction with statin therapy has been consistent across nearly all subgroups studied to date. However, in analyses of two randomized controlled primary prevention trials (ASCOT and JUPITER), statin therapy led to a greater relative risk reduction among a subgroup at high genetic risk. Here, we sought to confirm this observation in a third primary prevention randomized controlled trial. Additionally, we assessed if those at high genetic risk had a greater burden of subclinical coronary atherosclerosis...
February 21, 2017: Circulation
https://www.readbyqxmd.com/read/28223004/sudden-cardiac-death-among-hemodialysis-patients
#14
Melissa S Makar, Patrick H Pun
Hemodialysis patients carry a large burden of cardiovascular disease; most onerous is the high risk for sudden cardiac death. Defining sudden cardiac death among hemodialysis patients and understanding its pathogenesis are challenging, but inferences from the existing literature reveal differences between sudden cardiac death among hemodialysis patients and the general population. Vascular calcifications and left ventricular hypertrophy may play a role in the pathophysiology of sudden cardiac death, whereas traditional cardiovascular risk factors seem to have a more muted effect...
February 17, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28222650/is-surgery-always-indicated-in-rachitic-coronal-knee-deformities-our-experience-in-198-knees
#15
Jatin Prakash, Anil Mehtani, Alok Sud, Baccha K Reddy
INTRODUCTION: Defective mineralization of osteoid matrix prior to physeal closure causes rickets. Poor calcification of the cartilage matrix in the zone of provisional calcification causes flattened skull, rachitic rosary, bowed legs, coxa vara and brittle bones. The recent literature has seen an increase in the incidence of the disease in both developing and developed nations. We evaluated behaviour of lower limb deformities due to nutritional rickets in 117 patients. MATERIALS AND METHODS: A prospective study was conducted from January 2009 to December 2011 for clinical and radiological evaluation of knee deformities in nutritional rickets...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28221665/totally-percutaneous-versus-surgical-cut-down-femoral-artery-access-for-elective-bifurcated-abdominal-endovascular-aneurysm-repair
#16
REVIEW
Madelaine Gimzewska, Alexander Ir Jackson, Su Ern Yeoh, Mike Clarke
BACKGROUND: Abdominal aortic aneurysms (AAAs) are a vascular condition with significant risk attached, particularly if they rupture. It is, therefore, critical to identify and repair these as an elective procedure before they rupture and require emergency surgery. Repair has traditionally been an open surgical technique that required a large incision across the abdomen. Endovascular abdominal aortic aneurysm repairs (EVARs) are now a common alternative. In this procedure, the common femoral artery is exposed via a cut-down approach and a graft introduced to the aneurysm in this way...
February 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28221141/-etiopathogenic-factors-of-the-different-types-of-urinary-litiasis
#17
Miguel Arrabal-Martín, María Carmen Cano-García, Miguel Ángel Arrabal-Polo, Alejandro Domínguez-Amillo, Nelson Canales-Casco, Javier de la Torre-Trillo, José Manuel Cózar-Olmo
In this review, we analyze the etiopathogenic principles of urinary lithiasis formation. In the kidney, calcifications that may cause renal lithiasis are produced as a consequence of processes that injury the urothelium at the papilla and Bellini's ducts. With the improvement of imaging techniques, mainly micro CT scan, it is possible to detect them and we may be able to anticipate to the formation of lithiasis. As we well know, there are different factors that influence the formation of the calculi depending on their composition...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28221139/how-do-stones-form-is-unification-of-theories-on-stone-formation-possible
#18
Victoria Y Bird, Saeed R Khan
There are two basic pathways for formation of calcium based kidney stones. Most idiopathic calcium oxalate (CaOx) stones are formed in association with sub-epithelial plaques of calcium phosphate (CaP), known as Randall's plaques, on renal papillary surfaces. Crystal formation and retention within the terminal collecting ducts, the ducts of Bellini, leading to the formation of Randall's plugs, is the other pathway. Both pathways require supersaturation leading to crystallization, regulated by various crystallization modulators produced in response to changing urinary conditions...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28221099/sphingomyelin-phosphodiesterase-3-enhances-cytodifferentiation-of-periodontal-ligament-cells
#19
S Miyauchi, J Kitagaki, R Masumoto, A Imai, K Kobayashi, A Nakaya, S Kawai, C Fujihara, Y Asano, M Yamashita, M Yanagita, S Yamada, M Kitamura, S Murakami
Sphingomyelin phosphodiesterase 3 ( Smpd3), which encodes neutral sphingomyelinase 2 (nSMase2), is a key molecule for skeletal development as well as for the cytodifferentiation of odontoblasts and alveolar bone. However, the effects of nSMase2 on the cytodifferentiation of periodontal ligament (PDL) cells are still unclear. In this study, the authors analyzed the effects of Smpd3 on the cytodifferentiation of human PDL (HPDL) cells. The authors found that Smpd3 increases the mRNA expression of calcification-related genes, such as alkaline phosphatase (ALPase), type I collagen, osteopontin, Osterix (Osx), and runt-related transcription factor (Runx)-2 in HPDL cells...
March 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28220742/calcific-uraemic-arteriolopathy-calciphylaxis-in-patients-on-renal-replacement-therapy
#20
S Sebastian, H F Jordaan, J W Schneider, M R Moosa, M R Davids
BACKGROUND: Calcific uraemic arteriolopathy (calciphylaxis) is an unusual and potentially fatal condition characterised by small-vessel calcification and ischaemic skin necrosis. It mainly affects patients with end-stage renal disease (ESRD) on haemodialysis, but may rarely occur in the absence of ESRD in conditions such as primary hyperparathyroidism, malignancy, alcoholic liver disease and connective tissue disease. METHODS: We reviewed the records of all patients diagnosed with calciphylaxis while on renal replacement therapy at Tygerberg Hospital, Cape Town, South Africa, between 1990 and 2014, to describe its presentation, course and final outcome...
January 30, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
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