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https://www.readbyqxmd.com/read/28227683/artsens-%C3%A2-mobile-a-portable-image-free-platform-for-automated-evaluation-of-vascular-stiffness
#1
Malay Ilesh Shah, Jayaraj Joseph, T Aryasree, Mohanasankar Sivaprakasam, Malay Ilesh Shah, Jayaraj Joseph, T Aryasree, Mohanasankar Sivaprakasam, T Aryasree, Mohanasankar Sivaprakasam, Jayaraj Joseph, Malay Ilesh Shah
Vascular stiffness is a key physiological marker significant in screening and early diagnosis of vascular disease. However, state of art techniques for vascular stiffness evaluation are not suited for field deployment. We present ARTSENS(®) Mobile, a portable, image-free ultrasound technology platform for automated evaluation of carotid artery stiffness, amenable for field deployment. The technology utilises a single element ultrasound transducer operated in pulse echo modality to investigate arterial wall dynamics, assisted by intelligent algorithms for wall identification and motion tracking to completely automate the measurement...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227428/calcification-detection-of-abdominal-aorta-in-ct-images-and-3d-visualization-in-vr-devices
#2
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/28227209/high-speed-in-vivo-imaging-of-retinal-hemodynamics-in-a-rodent-model-of-hypertension
#3
Mahdieh Rezaeian, Dana Georgevsky, S Mojtaba Golzan, Stuart L Graham, Mahdieh Rezaeian, Dana Georgevsky, S Mojtaba Golzan, Stuart L Graham, Dana Georgevsky, Mahdieh Rezaeian, S Mojtaba Golzan, Stuart L Graham
The eye is the only organ through which microcirculation can be visualized non-invasively. This unique feature makes the eye and specifically retinal vasculature an excellent target area to monitor and study micro-vascular damage in systemic diseases. Dynamic (real-time) changes of retinal vessels have been shown to be more specific to the disease in comparison with static measurements. In this study we utilize high speed imaging (i.e. 125 fps) to study and derive dynamic changes of retinal vessels in a rat model of hypertension...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227045/noninvasive-simultaneous-measurement-of-blood-pressure-and-blood-flow-velocity-for-hemodynamic-analysis
#4
Yuki Kato, Shunsuke Yoshimoto, Yoshihiro Kuroda, Masataka Imura, Shingo Yamashita, Toshihiko Ogura, Osamu Oshiro, Yuki Kato, Shunsuke Yoshimoto, Yoshihiro Kuroda, Masataka Imura, Shingo Yamashita, Toshihiko Ogura, Osamu Oshiro, Osamu Oshiro, Yuki Kato, Yoshihiro Kuroda, Masataka Imura, Shunsuke Yoshimoto, Shingo Yamashita, Toshihiko Ogura
We describe a noninvasive and simultaneous measurement method of beat-by-beat blood pressure and blood flow velocity waveforms in the radial artery using tonometry and Doppler flowmetry. We conducted a subjective experiment in which hold-down pressure of tonometry was controlled for determining optimal hold-down pressure and the measurement accuracy under the optimal hold-down pressure was evaluated. As a result, blood pressure and blood flow velocity could be measured simultaneously without the influence of the hold-down pressure on the blood flow velocity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226682/extraction-of-medically-interpretable-features-for-classification-of-malignancy-in-breast-thermography
#5
Himanshu Madhu, Siva Teja Kakileti, Krithika Venkataramani, Susmija Jabbireddy, Himanshu Madhu, Siva Teja Kakileti, Krithika Venkataramani, Susmija Jabbireddy, Susmija Jabbireddy, Krithika Venkataramani, Siva Teja Kakileti, Himanshu Madhu
Thermography, with high-resolution cameras, is being re-investigated as a possible breast cancer screening imaging modality, as it does not have the harmful radiation effects of mammography. This paper focuses on automatic extraction of medically interpretable non-vascular thermal features. We design these features to differentiate malignancy from different non-malignancy conditions, including hormone sensitive tissues and certain benign conditions, which have an increased thermal response. These features increase the specificity for breast cancer screening, which had been a long known problem in thermographic screening, while retaining high sensitivity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226599/identifying-glaucoma-patients-by-applying-multivariate-analyses-of-cardiovascular-signals
#6
Andreas Voss, Claudia Fischer, Cristina Gonzalez Martinez, Eva Koch, Niklas Plange, Kathleen Kunert, Andreas Voss, Claudia Fischer, Cristina Gonzalez Martinez, Eva Koch, Niklas Plange, Kathleen Kunert, Claudia Fischer, Kathleen Kunert, Niklas Plange, Cristina Gonzalez Martinez, Eva Koch, Andreas Voss
Glaucoma is a disease that damages the eye's optic nerve. However, the exact cause of this optic nerve damage is not yet fully understood. Besides the factors of age, genetics and others, such as obesity, medication and migraines, a vascular dysfunction is believed to be a significant factor leading to glaucoma. This study's objective was to investigate whether these vascular dysfunctions could be recognized by analyzing cardiovascular regulation in glaucoma patients. Linear and nonlinear methods were applied to the extracted heart rate (HR), and systolic/ diastolic blood pressure (DBP) time series to discriminate between 35 healthy controls and 20 glaucoma patients...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226574/a-temperature-controlled-glove-with-non-invasive-arterial-pulse-sensing-for-active-neuro-vascular-assessment
#7
Andrew M Carek, Omer T Inan, Andrew M Carek, Omer T Inan, Andrew M Carek, Omer T Inan
A non-invasive, active neuro-vascular assessment system was developed using a modified temperature-controlled glove and feedback techniques. The glove incorporates local heating and cooling of the hand using multi-point skin temperature measurements as feedback, and thereby induces local and central mechanisms involved in thermoregulation. Electrocardiogram (ECG), photoplethysmogram (PPG) and non-invasive finger-cuff based blood pressure (BP) measurements were used to monitor electrophysiology and hemodynamic changes in response to temperature modulation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226388/-can-anti-vegf-injections-cause-glaucoma-or-ocular-hypertension
#8
I Lanzl, K Kotliar
An increasing number of patients receive intravitreal anti-vascular endothelial growth factor (anti-VEGF) injections with a high frequency for the treatment of neovascular macular disease. Since the volume of the vitreous body is temporarily increased by the injection of the substances, a short-term intraocular pressure increase after the introduction of the substance is not uncommon. However, there are more and more reports indicating that multiple injections may lead to a long-term increase in intraocular pressure...
February 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28226353/-comparison-of-complications-following-open-laparoscopic-and-robotic-gastrectomy
#9
Xin Lan, Hongqing Xi, Kecheng Zhang, Jianxin Cui, Mingsen Li, Lin Chen
OBJECTIVE: To compare clinically relevant postoperative complications after open, laparoscopic, and robotic gastrectomy for gastric cancer. METHODS: Clinical data of patients with gastric cancer who underwent gastrectomy between January 1, 2014 and October 1, 2016 at Chinese People's Liberation Army General Hospital were analyzed retrospectively. All the patients were diagnosed by upper endoscopy and confirmed by biopsy without distant metastasis. They were confirmed with R0 resection by postoperative pathology...
February 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28226325/lung-ultrasound-in-hemodialysis-a-card-to-be-played
#10
Pierpaolo Di Nicolò, Giacomo Magnoni, Antonio Granata
The end-stage renal disease is characterized by a profound impairment in the regulation of body fluid distribution, and volume assessment in hemodialysis is one of the challenging goals for the nephrologist. To determine a state of euvolemia, different validated techniques have been employed and among them lung ultrasonography (LUS) has recently attracted growing attention on account of its capacity to estimate accurately extra vascular lung water and to detect lung edema even in its early asymptomatic stage, that is, hidden lung congestion...
February 23, 2017: Blood Purification
https://www.readbyqxmd.com/read/28225533/pulmonary-vascular-complications-of-liver-disease
#11
Erin S DeMartino, Michael J Krowka
No abstract text is available yet for this article.
February 20, 2017: International Anesthesiology Clinics
https://www.readbyqxmd.com/read/28225505/nonrevascularizable-buttock-claudication-improved-with-sildenafil-a-case-report
#12
Loukman Omarjee, Audrey Camarzana, Samir Henni, Pierre Abraham
RATIONALE: Sildenafil, a phosphodiesterase-5-inhibitor (PDE5i), could represent a new treatment in addition to the medical treatment and advice to walk in peripheral arterial disease (PAD). PATIENT CONCERNS AND DIAGNOSES: We report a case of a 62-year-old heavy smoker man who developed a buttock claudication and a severe walking limitation following an aorto-bi-femoral bypass in 1992. Since 2003, each year, he has been referred for investigation of bilateral buttock claudication on treadmill using transcutaneous oxygen pressure (tcpO2) measurement during exercise to argue for the vascular origin of the walking impairment...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28224925/diabetes-mellitus-is-a-coronary-heart-disease-risk-equivalent-for-peripheral-vascular-disease
#13
Jonathan D Newman, Caron B Rockman, Mikhail Kosiborod, Yu Guo, Hua Zhong, Howard S Weintraub, Arthur Z Schwartzbard, Mark A Adelman, Jeffrey S Berger
: Diabetes mellitus (diabetes) is associated with significantly increased risk of peripheral vascular disease. Diabetes is classified as a coronary heart disease (CHD) risk equivalent, but it is unknown whether diabetes is a CHD risk equivalent for peripheral vascular disease. The objective was to evaluate the odds of peripheral arterial disease (PAD) or carotid artery stenosis (CAS) among participants with diabetes, CHD, or both, compared with participants without diabetes or CHD, in a nationwide vascular screening database...
February 2017: American Heart Journal
https://www.readbyqxmd.com/read/28224692/renal-function-affects-hippocampal-volume-and-cognition-the-role-of-vascular-burden-and-amyloid-deposition
#14
Hoyoung An, Booyeol Choi, Sang Joon Son, Eun Young Cho, Seon-Ok Kim, Sooyun Cho, Duk-Hee Kang, Chul Lee, Seong Yoon Kim
AIM: We determined if differences in renal function, even within normal levels, influenced hippocampal volume (HCV) and cognition. METHODS: Cognitively normal (CN) and mild cognitive impairment (MCI) subjects with eGFR ≥ 60 ml/min/1.73m(2) were selected from the ADNI database (N = 1,269) and divided into three groups (eGFR 60-75, 75-90 and ≥90). Associations between eGFR, HCV and cognition scores were examined using regression methods, and random-coefficient models...
February 22, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28224621/laboratory-assessment-of-sudden-sensorineural-hearing-loss-a-case-control-study
#15
Tommaso Fasano, Thelma A Pertinhez, Lorenzo Tribi, Daniela Lasagni, Annalisa Pilia, Luigi Vecchia, Roberto Baricchi, Giovanni Bianchin
OBJECTIVES/HYPOTHESIS: Sudden sensorineural hearing loss (SSHL) is an otologic emergency that affects five to 30 subjects per 100,000/year. The cause of SSHL remains unknown or uncertain in 70% to 90% of cases, and treatment decisions are usually made without knowing the etiology. STUDY DESIGN: Prospective case-control study. METHODS: One hundred thirty-one idiopathic SSHL patients were recruited from January 2014 to June 2015 in concordance with the Statements of Clinical Practice Guideline and divided into groups according to the disease severity...
February 22, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28224405/complications-of-acromegaly-cardiovascular-respiratory-and-metabolic-comorbidities
#16
REVIEW
Rosario Pivonello, Renata S Auriemma, Ludovica F S Grasso, Claudia Pivonello, Chiara Simeoli, Roberta Patalano, Mariano Galdiero, Annamaria Colao
Acromegaly is associated with an enhanced mortality, with cardiovascular and respiratory complications representing not only the most frequent comorbidities but also two of the main causes of deaths, whereas a minor role is played by metabolic complications, and particularly diabetes mellitus. The most prevalent cardiovascular complications of acromegaly include a cardiomyopathy, characterized by cardiac hypertrophy and diastolic and systolic dysfunction together with arterial hypertension, cardiac rhythm disorders and valve diseases, as well as vascular endothelial dysfunction...
February 21, 2017: Pituitary
https://www.readbyqxmd.com/read/28224265/effect-of-serum-albumin-on-the-prognosis-of-elderly-patients-with-stage-3-4-chronic-kidney-disease
#17
Hongru Fan, Jihong Yang, Lili Liu, Yu Qiao, Meng Wang, Lei Qiu, Hong Shi, Huan Xi, Yao Wang
OBJECTIVE: To investigate the influence of serum albumin on the prognosis of elderly patients with stage 3-4 chronic kidney disease (CKD). METHODS: From July 2013 to November 2015, elderly CKD patients (≥60 years), with eGFR ≥15 mL/min/1.73 m(2) and <60 mL/min/1.73 m(2), with CKD stage 3-4 in the geriatric nephrology clinic were enrolled. General information and underlying diseases were recorded. Laboratory indices were evaluated. Composite endpoint events (CEE) including renal endpoint events, cardiocerebral vascular endpoint events, and death were elucidated...
February 21, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28224216/vascular-surgery-the-main-risk-factor-for-mortality-in-146-takayasu-arteritis-patients
#18
Nilton Salles Rosa Neto, Samuel Katsuyuki Shinjo, Maurício Levy-Neto, Rosa Maria Rodrigues Pereira
Takayasu arteritis (TA) is an idiopathic chronic inflammatory disease that affects the aorta and its main branches. According to disease involvement, patients may require surgical treatment mainly due ischemic lesions in association with medical therapy. We evaluated the impact of vascular interventions in a cohort of TA patients. Medical records from 146 TA patients were reviewed. Clinical features, medical, and surgical treatment were revised and disease activity was determined by clinical, laboratorial, and imaging parameters...
February 21, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28223934/plasma-cystatin-c-and-high-density-lipoprotein-are-important-biomarkers-of-alzheimer-s-disease-and-vascular-dementia-a-cross-sectional-study
#19
Rui Wang, Zhaoyu Chen, Yongmei Fu, Xiaobo Wei, Jinchi Liao, Xu Liu, Bingjun He, Yunqi Xu, Jing Zou, Xiaoyan Yang, Ruihui Weng, Sheng Tan, Christopher McElroy, Kunlin Jin, Qing Wang
: Objectives: Cystatin C (Cys C) and high-density lipoprotein (HDL) play critical roles in neurodegenerative diseases, such as dementia, Alzheimer's disease (AD) and vascular dementia (VaD). However, whether they can be used as reliable biomarkers to distinguish patients with dementia from healthy subjects and to determine disease severity remain largely unknown. Methods: We conducted a cross-sectional study to determine plasma Cys C and HDL levels of 88 patients with dementia (43 AD patients, 45 VaD patients) and 45 healthy age-matched controls...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28223818/an-evidence-based-review-on-urate-lowering-treatments-implications-for-optimal-treatment-of-chronic-hyperuricemia
#20
REVIEW
Marilisa Bove, Arrigo Francesco Giuseppe Cicero, Maddalena Veronesi, Claudio Borghi
Several studies suggest that chronic hyperuricemia, the main precursor of gout, is involved in the pathogenesis of different systemic disorders that affect cardiovascular and renal systems, such as hypertension, obesity, hypercholesterolemia, atherosclerosis, metabolic syndrome, chronic heart failure, and chronic kidney disease. Recent epidemiological evidence has shown an increasing trend in the prevalence of hyperuricemia and gout in the Western world: a number of population-based studies estimate a prevalence of up to 21% for hyperuricemia and 1%-4% for gout...
2017: Vascular Health and Risk Management
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