Tuyển tập các báo cáo nghiên cứu khoa học ngành y học tạp chí Medical Sciences dành cho các bạn sinh viên ngành y tham khảo đề tài: Gain of a 500-fold sensitivity on an intravital MR Contrast Agent based on an endohedral Gadolinium-Cluster-Fullerene-Conjugate: A new chance in cancer diagnostics...
(BQ) Part 1 book "Radiology at a glance" presents the following contents: Plain X-ray (XR) imaging, computed tomography, Radiation protection and contrast agent precautions, making a radiology referral, which investigation - classic cases, upper limb XR classic cases I - shoulder and elbow,...
The successful introduction of extracellular gadolinium-based contrast agents for contrastenhanced
MR angiography, and their wide acceptance today, raise the question of what part an
intravascular contrast agent might play in diagnostic imaging. The answer lies in the capacity
of an intravascular agent to give us high-level diagnostic information from first pass arterial
imaging and, at the same time, to yield additional diagnostic value by allowing delayed imaging
from the same contrast injection.
Microbubble-based contrast agents for ultrasound were introduced some time ago,
although their clinical application has become widespread only in recent years. Since
color and power Doppler reveal overt artifacts after microbubble injection due to the
peculiar features of harmonic signals produced by insonation of microbubbles, dedicated
contrast-specifi c modes of US were introduced to optimize the registration of
The letter shown on the next page is from a prrivate in denmark to a company in the UK.It shows some of the features of a simple busibess the page.Sender's address in corresspndence that does not have a printed on the top righ - hand side of the page.In the UK , in contrast to the practice in some coutries, it is not usual to write the sender's name before the sender's address
The first edition of Handbook of MRI Technique was a resounding success. The rapidly increasing number of radiographers and technologists entering the modality, coupled with the development of education and training courses worldwide, has resulted in an increased demand for MRI books of any shape and size. The education of radiographers, technologists and radiologists often lags behind the rapid technological advances in MR.
The study of the heart and vessels by Magnetic Resonance Imaging
represents a relatively new field of application, especially if one considers
the large-scale diagnostic use of the technique in the neurological
and muscular fields.
The explanation of the delayed application in the cardiovascular
field can be sought in the methodological complexity linked to the
study of moving anatomical structures.
Few fi elds of medicine have witnessed such impressive progress as the diagnosis and
treatment of liver tumors. Advances in imaging technology, the development of novel
contrast agents, and the introduction of optimized scanning protocols have greatly
facilitated the non-invasive detection and characterization of focal liver lesions. Furthermore,
image-guided techniques for percutaneous tumor ablation have become an
accepted alternative treatment for patients with inoperable liver cancer.
Those of us involved in the development of magnetic resonance angiography (MRA) in
the late 1980’s could hardly envision the routine application of MRA in every MR facility
everyday. In those years there was spectacular development of many new MR clinical
applications.Many pioneering researchers investigated various strategies exploiting the
effects of blood flow on the MR signal to optimize clinical MRA. Remarkable successes
were demonstrated in rapid succession.
Andreeßen and Steinbüchel AMB Express 2011, 1:12 http://www.amb-express.com/content/1/1/12
Serinol: small molecule - big impact
Björn Andreeßen* and Alexander Steinbüchel
Abstract The amino alcohol serinol (2-amino-1,3-propanediol) has become a common intermediate for several chemical processes. Since the 1940s serinol was used as precursor for synthesis of synthetic antibiotics (chloramphenicol). In the last years, new scopes of applications were discovered.
However, a recent study of Moriwaki and al  found ultrasound was 85% sensitive and
100% specific for detection of free air in a prospective study of 484 patients. Some small
studies have also investigated the utility of ultrasound contrast agents to detect active
bleeding . Ultrasound is relatively sensitive for free abdominal fluid. In a study,
continuous scanning of Morison’s pouch during infusion of DPL fluid revealed a mean
detection limit of 619 mL.
Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen, of blood vessels and organs of the body, with particular interest in the arteries, veins and the heart chambers. This is traditionally done by injecting a radio-opaque contrast agent into the blood vessel and imaging using X-ray based techniques such as fluoroscopy. So angiography consists of MRI, CT-Scan. . .
Because of their size, strategic importance, and the magnitude of the institutional
changes they have experienced during economic transition, the economic policies and
performance of Russia and China provide dramatic experiments for the social scientist.
A key element of each country’s transition has been the attempt to construct a fiscal
system providing a coherent framework for accountability of the government’s use of
In addition McQueen and Vorkink (2004) are able to reproduce GARCH volatility using a
preference-based model with time-varying sensitivity to news. In a related paper, Vanden (2005)
develops a model where the representative agent exhibits a utility function with several risk aversion
regimes, which in equilibrium leads to volatility regimes and volatility clustering.
It has been said that the control of disease has three goals, which, in
increasing order of attraction are palliation, cure, and prevention. For most types
of disseminated cancer, medical science has achieved only the first of these
objectives, while for some malignancies the side effects of the therapeutic agents
employed rival the disease itself in precluding a desirable quality of life.