Xem 1-20 trên 44 kết quả Diagnostic modalities
  • Endoscopy is a fast moving field, and new techniques are constantly emerging. Gastrointestinal endoscopy has a central role in the evaluation of gastrointestinal complaints and in the diagnosis and management of gastrointestinal diseases. It is a very safe procedure in the general population as demonstrated by numerous studies. Several data provide a better understanding of pathogenic mechanisms. In recent decades, gastrointestinal endoscopy has evolved and branched out from a visual diagnostic modality to impressive interventional capabilities.

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  • The purpose of this book is to provide both an introduction and a state-of-the-art review of the essential physics and signal processing principles of diagnostic ultrasound in a single reference volume with a unified approach. This book draws together many of the ideas from seminal papers, the author’s research, and other sources in a single narrative and point of view. Unlike texts that present only the theory of acoustic fundamentals, this book relates topics to each other in the context of ultrasound imaging and practical application.

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  • The concept for Cancer Management: A Multidisciplinary Approach arose nearly 10 years ago. This seventh annual edition reflects the ongoing commitment of the authors, editors, and publishers to rapidly disseminate to oncologists the most current information on the clinical management of cancer patients. Each chapter in this seventh edition has been updated to keep pace with the most current diagnostic and treatment recommendations.

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  • (BQ) Part 1 book "Textbook of diagnostic sonography" presents the following contents: Foundations ofsonography; introduction to physical findings, physiology and laboratory data; essentials of patient care for the sonographer; ergonomics and musculoskeletal issues in sonography,...

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  • This book provides a practical approach for MR imaging of the focal and diffuse liver lesions based on the state-of-the-art MR imaging sequences, computer-generated drawings, concise figure captions, relevant and systematic (differential) diagnostic information, recent literature references, and patient management possibilities. MR imaging findings are correlated to ultrasound, computed tomography, and pathology when appropriate.

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  • Electrocardiograms (ECGs) are the graphic representation of body surface potential differences generated by the electrical activity of the heart. Bipolar limb leads, augmentedunipolar limb leads and precordial leads have been used routinely for recording the ECG, which remains an essential part of the cardiac examination, even after the advent of cardiac catheterization, angiocardiography, echocardiography and many other sophisticated diagnostic modalities.

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  • The inevitability of a disease sounds a clarion for its prevention, or at least its control. Understanding its pathophysiology is essential to that process. For osteoarthritis, preconceived notions and mythology must be transcended to allow identification of its essentials. The first step was to establish a scientific basis for its recognition. Sorting associated phenomenon allowed identification of those which are non-diagnostic, and one major finding which is pathognomonic: the joint osteophyte.

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  • Here we tried to map the dependency among aged in India. This is done across four sub groups, Rural Male, Rural female, urban male and urban female. In India in both categories of full and partial dependency, more than 80 percent of the women fall. In the national level more than 70 percent of the elderly are fully dependent in both female categories in both rural and urban areas (72.07 and 72.12) while it is just over 30 in the case of men (32.7 and 30.11). Kerala is the toper in the Rural male section with more than 43% are...

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  • Rapid technical advances in medical imaging, including its growing application to drug/gene therapy and invasive/interventional procedures, have attracted significant interest in close integration of research in life sciences, medicine, physical sciences and engineering. This is motivated by the clinical and basic science research requirement of obtaining more detailed physiological and pathological information about the body for establishing localized genesis and progression of diseases.

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  • Health care spending has exceeded economic growth in every recent decade. Over the last four decades, the average growth in health spending has exceeded the growth of the economy as a whole by between 1.1 and 3.0 percentage points (Figure 2). Since 1970, health care spending per capita has grown at an average annual rate of 8.2% or 2.4 percentage points faster than nominal GDP. The persistence of this trend suggests systematic differences between health care and other economic sectors where growth rates are typically more in line with the overall economy. A smaller difference is...

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  • It would be possible to create a score for each respondent from the factor analysis, and this approach is widely considered to be good practice when scoring complex data 13 . However, there is also a strong argument for giving each component of financial knowledge equal weighting, as each has benefits for individuals, and each has been identified as important by international experts.

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  • The mortality from ischemic heart disease has decreased in recent years. The better under‐ standing of risk factors associated with development of coronary artery disease (CAD) has significantly contributed to this decline. Preventive measures such as aggressive therapy of arterial hypertension, diabetes mellitus, and lipid disorders and by campaigning against the smoking are important components of this medical success.

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  • Hepatocellular carcinoma (HCC) used to be regarded as a rare disease. The increasing numbers of chronic hepatitis C virus carriers in the United States and subsequent increased incidence of HCC seen in most large medical centers means that it is no longer an uncommon disease for most gastroenterologists or oncologists to encounter. During the times when liver resection or systemic chemotherapy were the only real therapeutic modalities available, the outcomes were generally dismal, especially because most patients presented with advanced-stage tumors.

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  • Sometimes, especially during or soon after treatment, you may not feel like eating. You may be uncomfortable or tired. You may find that foods do not taste as good as they used to. In addition, the side effects of treatment (such as poor appetite, nausea, vomiting, or mouth sores) can make it hard to eat well. Your doctor, a registered dietitian, or another health care provider can suggest ways to deal with these problems. Also, the NCI booklet Eating Hints for Cancer Patients has many useful ideas and recipes. Page 46 tells how to get NCI booklets.

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  • We examine the competition between a group of Internet retailers who operate in an environment where a price search engine plays a dominant role.We show that for some products in this environment, the easy price search makes demand tremendously pricesensitive. Retailers, though, engage in obfuscation—practices that frustrate consumer search or make it less damaging to firms—resulting in much less price sensitivity on some other products. We discuss several models of obfuscation and examine its effects on demand and markups empirically.

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  • Many soils which have received manure or synthetic applications over a number of years contain relatively high levels of soil phosphorus. In soils which have not been so fertilized, phosphorus levels may be low. Rock powders suc as colloidal phosphate and rock phosphate can be applied to build up the phosphorus-supplying power of a soil over time. However, these products become available to plants very slowly, and cannot be relied upon to supply adequate phosphorus to a crop the year of application when soil level of phosphorus are low.

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  • The field of medical imaging is advancing at a rapid pace. Imaging modalities like x-ray radiography, x-ray computed tomography (CT), ultrasound, nuclear imaging, magnetic resonance imaging (MRI), and optical imaging have been used in biology and medicine to visualize anatomical structures as large as the lung and liver and as small as molecules. Ultrasound is considered the most cost-effective among them. It is used routinely in hospitals and clinics for diagnosing a variety of diseases.

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  • Investing in higher-risk, illiquid, targeted investments are part of an active portfolio and are more time-intensive than a passively managed portfolio. As such, pension funds that have adopted formal policies limit their total investments in this category to two percent of total assets in line with their broader strategic asset allocation policy. Pension funds seek portfolio diversification through a strategic asset allocation policy in which the fund or its consultants set a target percentage to each asset class—traditional and alternative investments.

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  • The pelvic adnexae include the ovaries and fallopian tubes. In general, ovaries increase in size throughout childhood, plateau in adulthood, then de- crease in size in the postmenopausal period (5). Postmenopausal ovary size is affected by the number of years since menopause and the quantity of prior pregnancies (6); however, ovaries should not be palpable in a woman who is two or more years beyond menopause, and such a finding should prompt fur- ther evaluation with transvaginal ultrasound.

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  • The organized work of those elements needs the proper functioning of each element separately (so for teacher projects: teachers, principal of the school, school health personnel, policy makers in the education sector; parent projects: parents of pupils of the school, community leaders etc; pupil projects: all pupils of the school). If there is a weak teachers’ project it will be difficult to achieve the objectives; the same if there is a weak pupils’ projects or parents’ project.

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