|
Giacomini Vein
The Giacomini vein, or cranial extension of the small saphenous vein is a communicating vein between the great saphenous vein (GSV) and the small saphenous vein (SSV). It is named after the Italian anatomist Carlo Giacomini (1840–1898). The Giacomini vein courses the posterior thigh as either a trunk projection, or tributary of the SSV. In one study it was found in over two-thirds of limbs. Another study in India found the vein to be present in 92% of those examined. It is located under the superficial fascia and its insufficiency seemed of little importance in the majority of patients with varicose disease, but the use of ultrasonography has highlighted a new significance of this vein. It can be part of a draining variant of the SSV which continues on to reach the GSV at the proximal third of the thigh instead of draining into the popliteal vein. The direction of its flow is usually anterograde (the physiological direction) but it can be retrograde when this vein acts as a by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Saphenous Vein
The great saphenous vein (GSV, alternately "long saphenous vein"; ) is a large, subcutaneous, superficial vein of the leg. It is the longest vein in the body, running along the length of the lower limb, returning blood from the foot, leg and thigh to the deep femoral vein at the femoral triangle. Structure The great saphenous vein originates from where the dorsal vein of the big toe (the hallux) merges with the dorsal venous arch of the foot. After passing in front of the medial malleolus (where it often can be visualized and palpated), it runs up the medial side of the leg. At the knee, it runs over the posterior border of the medial epicondyle of the femur bone. In the proximal anterior thigh inferolateral to the pubic tubercle, the great saphenous vein dives down deep through the cribriform fascia of the saphenous opening to join the femoral vein. It forms an arch, the saphenous arch, to join the common femoral vein in the region of the femoral triangle at the sapheno-femoral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communicating Vein
Communicating veins are veins that communicate two different points of the venous system. They can communicate the great saphenous vein with the small saphenous vein, (for example the Giacomini vein) or the superficial venous system with the deep one. In this case they are called perforator vein Perforator veins are so called because they perforate the deep fascia of muscles, to connect the superficial veins to the deep veins where they drain. Perforator veins play an essential role in maintaining normal blood draining. They have valves ...s and have a very important role in the venous system hemodynamics. References Veins {{circulatory-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Small Saphenous Vein
The small saphenous vein (also short saphenous vein or lesser saphenous vein) is a relatively large superficial vein of the posterior leg. Structure The origin of the small saphenous vein, (SSV) is where the dorsal vein from the fifth digit (smallest toe) merges with the dorsal venous arch of the foot, which attaches to the great saphenous vein (GSV). It is a superficial vein, being Subcutaneous tissue, subcutaneous (just under the skin). From its origin, it courses around the lateral aspect of the foot (inferior and posterior to the lateral malleolus) and runs along the posterior aspect of the leg (with the sural nerve), where it passes between the heads of the gastrocnemius muscle. This vein presents a number of different draining points. Usually, it drains into the popliteal vein, at or above the level of the knee joint. Variation Sometimes, the SSV joins the common gastrocnemius vein before draining in the popliteal vein. Sometimes, it does not make contact with the popliteal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlo Giacomini
Carlo Giacomini (Sale, 29 November 1840 – Torino, 5 July 1898), was a noted Italian anatomist, neuroscientist, and a professor at the University of Turin who also made significant contributions in anthropology and embryology. He worked with the physiologist, Angelo Mosso (1846-1910), which led to the first recording of human brain pulsations. Giacomini vein, a lower limb vein, and the band of Giacomini, a band of uncus gyri parahippocampalis he discovered in 1882, and the Giacomini vertebrae are named after him. He contributed anthropological research regarding differences among human races, and also took an interest in teratology linked to the various cases. Early life He graduated in medicine and surgery in 1864 at the University of Turin. In 1866 he was a volunteer doctor in the Third Italian War of Independence The Third Italian War of Independence ( it, Terza Guerra d'Indipendenza Italiana) was a war between the Kingdom of Italy and the Austrian Empire fought between ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultrasonography
Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is not different from "normal" (audible) sound in its physical properties, except that humans cannot hear it. This limit varies from person to person and is approximately 20 kilohertz (20,000 hertz) in healthy young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz. Ultrasound is used in many different fields. Ultrasonic devices are used to detect objects and measure distances. Ultrasound imaging or sonography is often used in medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws. Industrially, ultrasound is used for cleaning, mixing, and accelerating chemical processes. Animals such as bats and porpoises use ultrasound for locating prey and obstacles. History Acoustics, the science of sound, starts as far back as Pythagoras in the 6th century BC, who wrote on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Popliteal Vein
The popliteal vein is a vein of the lower limb. It is formed from the anterior tibial vein and the posterior tibial vein. It travels medial to the popliteal artery, and becomes the femoral vein. It drains blood from the leg. It can be assessed using medical ultrasound. It can be affected by popliteal vein entrapment. Structure The popliteal vein is formed by the junction of the venae comitantes of the anterior tibial vein and the posterior tibial vein at the lower border of the popliteus muscle. It travels on the medial side of the popliteal artery. It is superficial to the popliteal artery. As it ascends through the fossa, it crosses behind the popliteal artery so that it comes to lie on its lateral side. It passes through the adductor hiatus (the opening in the adductor magnus muscle) to become the femoral vein.Moore K.L. and Dalley A.F. (2006), Clinically Oriented Anatomy, 5th Edition, Lippincott Williams & Wilkins, Toronto, page 636 Tributaries The tributaries of the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endovenous Laser Treatment
Endovenous laser treatment (ELT) is a minimally invasive ultrasound-guided technique used for treating varicose veins using laser energy commonly performed by a phlebologist, interventional radiologist or vascular surgeon. Methods Endovenous laser treatment treats varicose veins using an optical fiber that is inserted into the vein to be treated, and laser light, normally in the infrared portion of the spectrum, shines into the interior of the vein. This causes the vein to contract, and the optical fiber is slowly withdrawn. Some minor complications can occur, including thrombophlebitis, pain, hematoma, edema and infection, which can lead to cellulitis. EVLT has the same meaning as ELT, but it is a trademark name owned by Diomed and used as the name for their 910 nm laser treatment unit for ELT. The 810 nm laser is the original laser fiber wavelength as pioneered by Dr. Luis Navarro, Dr. Carlos Bone and Dr. Robert Min, at the Vein Treatment Center in New York, New York. S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sclerotherapy
Sclerotherapy (the word reflects the Greek ''skleros'', meaning ''hard'') is a procedure used to treat blood vessel malformations (vascular malformations) and also malformations of the lymphatic system. A medicine is injected into the vessels, which makes them shrink. It is used for children and young adults with vascular or lymphatic malformations. In adults, sclerotherapy is often used to treat spider veins, smaller varicose veins, hemorrhoids,William R. Finkelmeier, Sclerotherapy, Ch. 12, ACS Surgery: Principles & Practice, 2004, WebMD (hardcover book) and hydroceles.Darren T Beiko, Aspiration and Sclerotherapy versus hydrocelectomy for treatment of hydroceles, Urology Vol 61, Issue 4 (Apr 2003) Sclerotherapy is one method (along with surgery, radiofrequency, and laser ablation) for the treatment of spider veins, occasionally varicose veins, and venous malformations. In ultrasound-guided sclerotherapy, ultrasound is used to visualize the underlying vein so the physician can de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultrasonography Of Chronic Insufficiency Of The Legs
Ultrasonography of suspected or previously confirmed chronic venous insufficiency of leg veins is a risk-free, non-invasive procedure. It gives information about the anatomy, physiology and pathology of mainly superficial veins. As with heart ultrasound (echocardiography) studies, venous ultrasonography requires an understanding of hemodynamics in order to give useful examination reports. In chronic venous insufficiency, sonographic examination is of most benefit; in confirming varicose disease, making an assessment of the hemodynamics, and charting the progression of the disease and its response to treatment. It has become the reference standard for examining the condition and hemodynamics of the lower limb veins. Particular veins of the deep venous system (DVS), and the superficial venous system (SVS) are looked at. The great saphenous vein (GSV), and the small saphenous vein (SSV) are superficial veins which drain into respectively, the common femoral vein and the popliteal vei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
