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Arteriography
Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen (anatomy), lumen, of blood vessels and organs of the body, with particular interest in the artery, arteries, veins, and the Heart#Chambers, heart chambers. Modern angiography is performed by injecting a radio-opaque radiocontrast, contrast agent into the blood vessel and imaging using X-ray based techniques such as fluoroscopy. With time-of-flight (TOF) magnetic resonance it is no longer necessary to use a contrast. The word itself comes from the Ancient Greek, Greek words ἀνγεῖον ''angeion'' 'vessel' and γράφειν ''graphein'' 'to write, record'. The film or image of the blood vessels is called an ''angiograph'', or more commonly an ''angiogram''. Though the word can describe both an arteriogram and a venogram, in everyday usage the terms angiogram and arteriogram are often used synonymously, whereas the term venogram is used more precisely. The term angiography has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerebral Angiography
Cerebral angiography is a form of angiography which provides images of blood vessels in and around the brain, thereby allowing detection of abnormalities such as arteriovenous malformations and aneurysms. It was pioneered in 1927 by the Portuguese neurologist Egas Moniz at the University of Lisbon, who also helped develop thorotrast for use in the procedure. Typically a catheter is inserted into a large artery (such as the femoral artery) and threaded through the circulatory system to the Common carotid artery, carotid artery, where a contrast agent is injected. A series of radiographs are taken as the contrast agent spreads through the brain's arterial system, then a second series as it reaches the venous system. For some applications, cerebral angiography may yield better images than less invasive methods such as computed tomography angiography and magnetic resonance angiography. In addition, cerebral angiography allows certain treatments to be performed immediately, based on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic Resonance Angiography
Magnetic resonance angiography (MRA) is a group of techniques based on magnetic resonance imaging (MRI) to image blood vessels. Magnetic resonance angiography is used to generate images of arteries (and less commonly veins) in order to evaluate them for stenosis (abnormal narrowing), Vascular occlusion, occlusions, aneurysms (vessel wall dilatations, at risk of rupture) or other abnormalities. MRA is often used to evaluate the arteries of the neck and brain, the thoracic and abdominal aorta, the renal arteries, and the legs (the latter exam is often referred to as a "run-off"). Acquisition A variety of techniques can be used to generate the pictures of blood vessels, both artery, arteries and veins, based on flow effects or on contrast (inherent or pharmacologically generated). The most frequently applied MRA methods involve the use intravenous MRI contrast agent, contrast agents, particularly those containing gadolinium to shorten the Spin–lattice relaxation, ''T''1 of bloo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transverse Plane
A transverse plane is a plane that is rotated 90° from two other planes. Anatomy The transverse plane is an anatomical plane that is perpendicular to the sagittal plane and the dorsal plane. It is also called the axial plane or horizontal plane, especially in human anatomy, but horizontal plane can be misleading with other animals. The plane splits the body into a cranial (head) side and caudal (tail) side, so in humans the plane will be horizontal (dividing the body into superior and inferior sections) but in quadrupeds it will be vertical. Human anatomy Clinically relevant anatomical planes * Transverse '' thoracic plane'' * '' Xiphosternal plane'' (or xiphosternal junction) * '' Transpyloric plane'' * '' Subcostal plane'' * '' Umbilical plane'' (or transumbilical plane) * '' Supracristal plane'' * '' Intertubercular plane'' (or transtubercular plane) * '' Interspinous plane'' Associated structures * The transverse '' thoracic plane'' ** Plane through T4 & T5 verteb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Femoral Artery
The femoral artery is a large artery in the thigh and the main arterial supply to the thigh and leg. The femoral artery gives off the deep femoral artery and descends along the anteromedial part of the thigh in the femoral triangle. It enters and passes through the adductor canal, and becomes the popliteal artery as it passes through the adductor hiatus in the adductor magnus near the junction of the middle and distal thirds of the thigh. The femoral artery proximal to the origin of the deep femoral artery is referred to as the ''common femoral artery'', whereas the femoral artery distal to this origin is referred to as the ''superficial femoral artery''. Structure The femoral artery represents the continuation of the external iliac artery beyond the inguinal ligament underneath which the vessel passes to enter the thigh. The vessel passes under the inguinal ligament just medial of the midpoint of this ligament, midway between the anterior superior iliac spine and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lucien Campeau
Lucien Campeau (June 20, 1927March 15, 2010) was a Canadian cardiologist. He was a full professor at the Université de Montréal The Université de Montréal (; UdeM; ) is a French-language public research university in Montreal, Quebec, Canada. The university's main campus is located in the Côte-des-Neiges neighborhood of Côte-des-Neiges–Notre-Dame-de-Grâce on M .... He is best known for performing the world's first transradial coronary angiogram. Campeau was one of the founding staff of the Montreal Heart Institute, joining in 1957. He is also well known for developing the Canadian Cardiovascular Society grading of angina pectoris. Education Campeau received his M.D. degree from the University of Laval in 1953 and completed a fellowship in Cardiology at Johns Hopkins Hospital from 1956 to 1957. He later became a professor at University of Montreal in 1961 and was one of the co-founders of the Montreal Heart Institute. In his lifetime, Campeau was awarded the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seldinger Technique
The Seldinger technique, also known as Seldinger wire technique, is a medical procedure to obtain safe access to blood vessels and other hollow organ (anatomy), organs. It is eponym, named after Sven Ivar Seldinger (1921–1998), a Sweden, Swedish radiology, radiologist who introduced the procedure in 1953. Uses The Seldinger technique is used for angiography, insertion of chest drains and central venous catheters, insertion of percutaneous endoscopic gastrostomy, PEG tubes using the push technique, insertion of the leads for an artificial pacemaker or implantable cardioverter-defibrillator, and numerous other interventional medical procedures. Complications The initial puncture is with a sharp instrument, and this may lead to hemorrhage or perforation of the organ in question. Infection is a possible complication, and hence asepsis is practiced during most Seldinger procedures. Loss of the guidewire into the cavity or blood vessel is a significant and generally preventable com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sousa Pereira
Sousa refers to * John Philip Sousa (1854–1932), American composer of marches Sousa also may refer to: People * Sousa (surname), including other Portuguese variants such as Souza, de Sousa, D'Souza, etc. * João Sousa, Portuguese tennis player * Paulo Sousa, Portuguese football manager * Souza (footballer, born 1975), José Ivanaldo de Souza, Brazilian football attacking midfielder * Souza (footballer, born 1977), Sergio Roberto Pereira de Souza, Brazilian football midfielder * Souza (footballer, born 1979), Willamis de Souza Silva, Brazilian former football midfielder and television pundit * Souza (footballer, born 1982), Rodrigo de Souza Cardoso, Brazilian football striker * Souza (footballer, born 1988), Elierce Barbosa de Souza, Brazilian football defensive midfielder * Souza (footballer, born 2006), João Victor de Souza Menezes, Brazilian football left-back * Sousa (Brazilian footballer), Van Basty Sousa e Silva, (born 1994), Brazilian football midfielder * Daniel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fausto Lopo De Carvalho
Fausto Lopo Patrício de Carvalho (15 May 1890 – 23 May 1970), more commonly known as Fausto Lopo de Carvalho, was a Portuguese pulmonologist specialising in phthisiology, and the developer of pulmonary angiography in 1931, with Egas Moniz and Almeida Lima. He was the son of eminent phthisiologist Lopo de Carvalho (founder of the first sanatorium in Portugal, in Guarda), and his wife Leopoldina dos Anjos Patrício de Carvalho. He studied at the University of Coimbra, earning a degree in medicine with the highest possible grade (20 out of a possible 20) in 1916; after completing his medical studies he worked at the Guarda Sanatorium under his father's guidance, where he prepared his thesis for a doctorate, entitled '' Artificial Pneumothorax''. He taught Medical Propaedeutics, first at the Faculty of Medicine of the University of Coimbra and later at the Faculty of Medicine of the University of Lisbon, until 1934, when he was appointed to the newly created Chair of Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reynaldo Dos Santos
Reynaldo dos Santos (3 December 1880 – 6 May 1970) was a Portuguese physician, writer, and art historian. As a physician, he was a pioneer in the fields of vascular surgery and urology; as an art historian, he published numerous works on 15th-century Portuguese art, including on the Manueline style and on the paintings of Nuno Gonçalves. Biography Reynaldo dos Santos was born in 1880 to Clemente José dos Santos (himself a physician) and Maria Amélia Pinheiro Santos, in the family home in Rua das Varinas, Vila Franca de Xira, a town in the outskirts of Lisbon. He concluded his primary and secondary studies in this town, before enrolling at the Medico-Surgical School in Lisbon, from which he graduated in 1903. Between 1902 and 1905, he was abroad in Paris and the main surgical centres of the United States, in Boston, Chicago, Rochester, Baltimore, Philadelphia, and New York. He earned his doctorate in Medicine in 1906, with his thesis titled "''Aspectos Cirúrgicos das Pan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arteriovenous Malformations
An arteriovenous malformation (AVM) is an abnormal connection between arteries and veins, bypassing the capillary system. Usually congenital, this vascular anomaly is widely known because of its occurrence in the central nervous system (usually as a cerebral AVM), but can appear anywhere in the body. The symptoms of AVMs can range from none at all to intense pain or bleeding, and they can lead to other serious medical problems. Signs and symptoms Symptoms of AVMs vary according to their location. Most neurological AVMs produce few to no symptoms. Often the malformation is discovered as part of an autopsy or during treatment of an unrelated disorder (an " incidental finding"); in rare cases, its expansion or a micro-bleed from an AVM in the brain can cause epilepsy, neurological deficit, or pain. The most general symptoms of a cerebral AVM include headaches and epileptic seizures, with more specific symptoms that normally depend on its location and the individual, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Lisbon
The University of Lisbon (ULisboa; ) is a public university, public research university in Lisbon, and Portugal's largest university. It was founded in 1911, but the university's present structure dates to the 2013 merger of the former University of Lisbon (1911–2013) and the Technical University of Lisbon, Technical University of Lisbon (1930–2013). History University of Coimbra, the first Portuguese university, was established in Lisbon between 1288 and 1290, when Denis of Portugal, Dinis I promulgated the letter ''Scientiae thesaurus mirabili'', granting several privileges to the students of the ''studium generale'' in Lisbon, proving that it was already founded on that date. There was an active participation in this educational activity by the Portuguese Crown and its king, through its commitment of part of the subsidy of the same, as by the fixed incomes of the Church. This institution moved several times between Lisbon and Coimbra, where it settled permanently in 1537. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
