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https://www.readbyqxmd.com/read/28820653/fibrous-skeleton-of-the-heart-anatomic-overview-and-evaluation-of-pathologic-conditions-with-ct-and-mr-imaging
#1
Farhood Saremi, Damián Sánchez-Quintana, Shumpei Mori, Horia Muresian, Diane E Spicer, Cameron Hassani, Robert H Anderson
The fibrous skeleton is concentrated at the base of the ventricular mass. It provides electrical insulation at the atrioventricular level and fibrous continuity for the leaflets of the mitral, aortic, and tricuspid valves. Its components include the fibrous trigones, the fibrous area of aortic-mitral continuity, the subvalvar collar of the mitral valve, the membranous septum, the interleaflet triangles, the tendon of Todaro, and likely the conus ligament. The majority of the mitral annulus is fibrous, but the only true fibrous part of the tricuspid annulus is where the valvar leaflets are attached to the central fibrous body...
August 18, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28819909/adjunctive-breast-specific-gamma-imaging-for-detecting-cancer-in-women-with-calcifications-at-mammography
#2
Hyun Woo Chung, Young So, Jung-Hyun Yang, Kyoung Sik Park, Young Bum Yoo, Nami Choi, Mi Young Kim, Jayoun Kim, Eun Jeong Lee
BACKGROUND: Mammography detects calcium deposits sensitively, but the specificity for differentiating malignancy from benign calcifications is low. Thus, we investigated whether adjunctive breast-specific gamma imaging (BSGI) has incremental value for detecting cancer in women with suspicious calcifications detected by mammography, and compared BSGI with adjunctive ultrasonography (US). METHODS: The medical records of women without a personal history of breast cancer who underwent mammography for breast evaluation from 2009 to 2014 were reviewed retrospectively...
August 17, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28818586/a-rare-presentation-of-the-syndrome-of-inappropriate-antidiuretic-hormone-in-a-12-year-old-female-as-the-initial-presentation-of-an-immature-ovarian-teratoma
#3
Anoop Mohamed Iqbal, W Frederick Schwenk
BACKGROUND: Immature ovarian teratoma is very rare in childhood. We are reporting 12 yo female with immature ovarian teratoma who presented initially with syndrome of inappropriate antidiuretic hormone. CASE: A 12 yo female presented with acute abdomen and distention. Initial laboratory tests showed hyponatremia (sodium -123 mmol/L), that did not respond to fluid management. Computerized tomography showed a 15 cm x 9 cm x 20 cm mass in the right ovary with multifocal internal fat, and dystrophic calcifications...
August 14, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28818353/does-calcium-burden-impact-culprit-lesion-morphology-and-clinical-results-an-adapt-des-ivus-substudy
#4
Peiren Shan, Gary S Mintz, Bernhard Witzenbichler, D Christopher Metzger, Michael J Rinaldi, Peter L Duffy, Giora Weisz, Thomas D Stuckey, Bruce R Brodie, Philippe Généreux, Aaron Crowley, Ajay J Kirtane, Gregg W Stone, Akiko Maehara
BACKGROUND: Increasing coronary lesion calcification is thought to be associated with adverse percutaneous coronary intervention (PCI) and clinical outcomes. We investigated the effects of calcium burden on culprit lesion morphology and clinical events after intravascular ultrasound (IVUS)-guided PCI in the ADAPT-DES study. METHODS: ADAPT-DES was a prospective, multicenter registry of 8582 consecutive patients undergoing successful PCI using DES. A pre-specified virtual histology (VH)-IVUS substudy of 638 culprit lesions (638 patients) had both pre- and post-PCI VH-IVUS...
August 12, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28818259/imaging-of-the-high-risk-carotid-plaque-magnetic-resonance-imaging
#5
William S Kerwin, Zach Miller, Chun Yuan
The emergence of the concept of high-risk atherosclerotic plaque has led to considerable interest in noninvasive imaging techniques to identify high-risk features before clinical sequelae. For plaques in the carotid arteries, magnetic resonance imaging has undergone considerable histologic validation to link imaging features to indicators of plaque instability, including plaque burden, intraplaque hemorrhage, fibrous cap disruption, lipid rich necrotic core, and calcification. Recently introduced imaging technologies, especially those focused on three-dimensional imaging sequences, are now poised for integration into the clinical workup of patients with suspected carotid atherosclerosis...
March 2017: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/28817894/re-calcification-score-evaluation-in-patients-listed-for-renal-transplantation
#6
David A Goldfarb
No abstract text is available yet for this article.
September 2017: Journal of Urology
https://www.readbyqxmd.com/read/28817459/relation-between-epicardial-fat-and-subclinical-atherosclerosis-in-asymptomatic-individuals
#7
Rami M Abazid, Osama A Smettei, Mohammad Obadah Kattea, Sawsan Sayed, Hanaa Saqqah, Adel M Widyan, Maksymilian P Opolski
PURPOSE: Excessive quantity of epicardial adipose tissue (EAT) is considered a risk factor for coronary artery disease (CAD). There are limited data, however, on the relationship between the quality of EAT and CAD. We investigated the association between the density and volume of EAT and subclinical CAD defined by positive coronary artery calcification (CAC), using computed tomography (CT). MATERIALS AND METHODS: We reviewed 609 consecutive CT scans of patients with a mild to moderate risk for CAD to assess the EAT volume, which was measured manually by tracing the parietal pericardial sac on axial images...
August 16, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28816772/a-case-of-lenticulostriate-stroke-due-to-minor-closed-head-injury-in-a-2-year-old-child-role-of-mineralizing-angiopathy
#8
Emin Fidan, Dana D Cummings, Mioara D Manole
OBJECTIVE: Cerebral infarction due to minor head injury is rare. Mineralizing angiopathy is considered a predisposing factor for lenticulostriate stroke after minor closed head injury. This entity is characterized by infarction of the basal ganglia and most often occurs in young children, from infancy to 2 years of age. Symptoms usually occur immediately after the injury. METHODS AND RESULTS: We present the case of a previously healthy 2-year-old female child presenting with right facial hemiparesis and aphasia, along with right arm and leg weakness that occurred immediately after a fall from the couch onto a carpeted floor...
July 3, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28816531/prevalence-and-predictors-of-primary-hyperparathyroidism-amongpatients-with-urolithiasis
#9
S Sharma, A Rastogi, S K Bhadada, P Singh, S Varshney, A Behera, A Bhansali, S K Singh, D S Rao
BACKGROUND: Urolithiasis may be the only presenting manifestation of primary hyperparathyroidism (PHPT), and early detection of PHPT in such patients may prevent future urolithiasis and other PHPT complications. OBJECTIVES: To study the prevalence and predictors of PHPT in patients presenting with urolithiasis. SUBJECTS & METHODS: Consecutive patients presenting with urolithiasis were evaluated for clinical and biochemical manifestations of PHPT with serum and urine calcium, serum intact parathyroid hormone and 25 (OH) vitamin D...
August 17, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28816078/pathobiology-of-lp-a-in-calcific-aortic-valve-disease
#10
Patrick Mathieu, Benoit J Arsenault, Marie-Chloé Boulanger, Yohan Bossé, Marlys L Koschinsky
Calcific aortic valve disease (CAVD) is the most prevalent heart valve disorder. Gene variant in the LPA gene, which encodes for apolipoprotein(a), has been associated at the genome-wide level with CAVD. The process whereby Lp(a) promotes the development of CAVD is under intensive investigation and recent data have shed important insights into disease biology. In this regard, autotaxin (ATX), a lysophospholipase D, interacts with Lp(a) and promotes the mineralization of the aortic valve. Areas covered: In this paper, we are reviewing the biology of Lp(a) and the latest discoveries about the molecular processes that link this lipoprotein with the development of CAVD including the role of ATX...
August 17, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28815058/testicular-microlithiasis-is-associated-with-ethnicity-and-socioeconomic-status
#11
Malene R Pedersen, Emily C Bartlett, Søren R Rafaelsen, Palle J Osther, Peter Vedsted, Maria E Sellars, Paul S Sidhu, Henrik Møller
BACKGROUND: There are limited studies about testicular microlithiasis (TML) and background information such as health, lifestyle, and socioeconomic status. PURPOSE: To assess the prevalence of TML in relation to socioeconomic status and ethnicity. MATERIAL AND METHODS: From a database of scrotal ultrasound examinations in a single institution, all men who underwent routine ultrasound examinations for a variety of symptoms from 1998 to 2015 were included...
August 2017: Acta Radiologica Open
https://www.readbyqxmd.com/read/28814721/acceleration-of-osteoblast-differentiation-by-a-novel-osteogenic-compound-dmp-pyt-through-activation-of-both-the-bmp-and-wnt-pathways
#12
Su Jung Bae, Hye Joo Kim, Hee Yeon Won, Yong Ki Min, Eun Sook Hwang
Osteoblast differentiation is regulated through the successive activation of signaling molecules by a complex interplay of extracellular signals such as bone morphogenetic protein (BMP) and Wnt ligands. Numerous studies have identified natural as well as synthetic compounds with osteogenic activity through the regulation of either BMP/SMADs or the Wnt/β-catenin pathway. Here, we attempted to isolate small molecules that concurrently activated both SMADs and β-catenin, which led to the discovery of a novel potent osteogenic compound, DMP-PYT...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814492/influence-of-arterial-stiffness-on-cardiovascular-outcome-in-patients-without-high-blood-pressure
#13
Keishi Ichikawa, Satoru Sakuragi, Takahiro Nishihara, Masahiro Tsuji, Atsushi Mori, Fumi Yokohama, Tadashi Wada, Daiji Hasegawa, Kenji Kawamoto, Machiko Tanakaya, Yusuke Katayama, Hiroshi Ito
OBJECTIVE: Although blood pressure (BP) is a major determinant of arterial stiffness, whether high pulse wave velocity (PWV) adversely influences cardiac parameters and cardiovascular (CV) outcome in patients without high BP remains unclear. METHODS: Outpatients without high BP (n=320), defined as systolic BP ≥140 mm Hg, were enrolled in this retrospective study. At baseline, all patients underwent echocardiography and multidetector CT to determine the coronary artery calcification (CAC) score...
August 16, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28814237/statins-in-aortic-stenosis
#14
Karl Norrington, Emmanuel Androulakis, Evangelos Oikonomou, Georgia Vogiatzi, Dimitris Tousoulis
Calcific aortic stenosis (AS) is the most common form of valvular heart disease in Europe and North America. It is a progressive disease with a prolonged period of asymptomatic latency which eventually leads to critical left ventricular outflow tract obstruction necessitating surgical replacement of the valve. Statins are lipid-lowering drugs with a robust evidence base demonstrating clinical benefit in atherosclerotic coronary artery disease. There has therefore been significant interest in the potential benefit of statins in AS...
August 15, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28813764/incidental-finding-of-giant-left-ventricular-aneurysm-case-report-and-literature-review
#15
Muhammad Omar, Shenjing Li, Amornpol Anuwatworn
Left ventricular aneurysms and pseudoaneurysms are complications of myocardial infarction. With advances in percutaneous coronary intervention, development of thrombolytic agents, and early initiation of treatment with angiotensin-converting enzyme inhibitors to decrease afterload and inhibit left ventricular remodeling, these complications have become much less common. Here, we report an incidental finding of a giant aneurysm of the left ventricle with associated thrombus and mural calcifications in an elderly male patient who presented to his primary care physician for abdominal pain and denied any prior coronary artery disease...
June 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28812954/mesenchymal-chondrosarcoma-of-the-orbit-a-case-report-with-5%C3%A2-years-of-follow-up
#16
Md Shahid Alam, Nirmala Subramanian, Akruti Sunil Desai, S Krishnakumar
Mesenchymal chondrosarcoma is a rare orbital tumor. Several case reports of this rare tumor have been published in the literature but only 6 cases have documented a follow up of 5 years or more. We report a case of 28 year-old female who presented with left orbital mass. Computed Tomography (CT) revealed a lobulated mass in the superior extraconal space with dense intralesional calcification. Patient underwent complete resection of the mass and histopathology was suggestive of mesenchymal chondrosarcoma. He was given adjuvant radiotherapy and there was no recurrence or metastasis at 5 years of follow-up...
August 16, 2017: Orbit
https://www.readbyqxmd.com/read/28812215/proteomic-alterations-associated-with-biomechanical-dysfunction-are-early-processes-in-the-emilin1-deficient-mouse-model-of-aortic-valve-disease
#17
P M Angel, D A Narmoneva, M K Sewell-Loftin, C Munjal, L Dupuis, B J Landis, A Jegga, C B Kern, W D Merryman, H S Baldwin, G M Bressan, Robert B Hinton
Aortic valve (AV) disease involves stiffening of the AV cusp with progression characterized by inflammation, fibrosis, and calcification. Here, we examine the relationship between biomechanical valve function and proteomic changes before and after the development of AV pathology in the Emilin1-/- mouse model of latent AV disease. Biomechanical studies were performed to quantify tissue stiffness at the macro (micropipette) and micro (atomic force microscopy (AFM)) levels. Micropipette studies showed that the Emilin1-/- AV annulus and cusp regions demonstrated increased stiffness only after the onset of AV disease...
August 15, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28812017/valve-calcification-in-aortic-stenosis-etiology-and-diagnostic-imaging-techniques
#18
REVIEW
María Manuela Izquierdo-Gómez, Iván Hernández-Betancor, Javier García-Niebla, Belén Marí-López, Ignacio Laynez-Cerdeña, Juan Lacalzada-Almeida
Aortic stenosis is the most common valvulopathy in the Western world. Its prevalence has increased significantly in recent years due to population aging; hence, up to 8% of westerners above the age of 84 now have severe aortic stenosis (Lindroos et al., 1993). This causes increased morbidity and mortality and therein lies the importance of adequate diagnosis and stratification of the degree of severity which allows planning the best therapeutic option in each case. Long understood as a passive age-related degenerative process, it is now considered a rather more complex entity involving mechanisms and factors similar to those of atherosclerosis (Stewart et al...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28811853/effects-of-sevelamer-hydrochloride-on-uremic-toxins-serum-indoxyl-sulfate-and-p-cresyl-sulfate-in-hemodialysis-patients
#19
Cheng-Jui Lin, Chi-Feng Pan, Chih-Kuang Chuang, Hsuan-Liang Liu, Sung-Fa Huang, Han-Hsiang Chen, Chih-Jen Wu
BACKGROUND: Beside the phosphate binding effect, non-calcium non-aluminum phosphate binder, namely sevelamer hydrochloride (SH), has many other effects in dialysis patients. It can absorb many other compounds, decrease low-density lipoprotein cholesterol (LDL-C) level, and attenuate the progression of vascular calcification; it has been reported to have anti-inflammatory effect. However, it is not clear whether it has any effect on uremic toxins, i.e. serum indoxyl sulfate (IS) and p-cresyl sulfate, (PCS) in hemodialysis (HD) patients...
September 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28811848/skull-base-tumors-and-tumor-like-lesions-a-pictorial-review
#20
REVIEW
Akira Kunimatsu, Natsuko Kunimatsu
A number of tumors and tumor-like non-neoplastic lesions with different cell types on histology occur in the skull base. A wide variety in disease and lesion appearance often complicates the process of radiological diagnosis. The main role of radiographic imaging is the detection and characterization of skull base lesions, with evaluation of the extent of invasion or preservation of adjacent critical organs. Evaluation of the skull base anatomy and surgical planning by using image guidance are also important for surgeons...
2017: Polish Journal of Radiology
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