Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 701 for “"Vein"”.
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Visualisation on blood flow mechanism of vein in deep vein thrombosis (DVT) study
… the existence of thrombus. Proper blood flow in veins are important to ensure the effective return of deoxygenated blood to the heart. It is challenging to determine the vessel condition, due to the inability to visualize the thrombus presence in the vessel. This is due to the noise that are …
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Non-invasive early diagnosis of deep vein thrombosis
Deep Vein Thrombosis (DVT) is a blood clot that forms in deep veins which commonly occur in lower limb or thigh. The blood clot blocks deep vein and can travel to lung and block pulmonary arteries. This condition will cause fatal Pulmonary Embolism (PE). DVT can be diagnosed using non-invasive …
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A model of flow through an aqueous vein
Thesis: B.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1980
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Anatomical and functional correlates in ischaemic retinal vein occlusion
Ischaemic retinal vein occlusion (RVO) is a potentially blinding condition that is not fully understood, and entails a higher risk of developing complications and poorer prognosis than non-ischaemic RVO. This PhD project was designed to improve the level of understanding on ischaemic RVO as well as …
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A Mechano-Chemical Computational model of Deep Vein Thrombosis
Deep Vein Thrombosis (DVT) is the formation of a blood clot in a vein, usually in the body's lower extremities. If untreated, DVT can lead to pulmonary embolism (PE), heart attack and/or stroke, which can be fatal. According to literature, DVT affects 0.2% of people in developed countries and about …
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Aqueous vein collapse and its effect on outflow resistance
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1986.
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Gold-quartz vein mineralization in Stanly County, North Carolina
… were first found in 1799. Gold-bearing quartz veins, typical of those found in many parts of the Appalachians, have been studied at the Cotton Patch, Mountain Creek, Parker, Gold Hill, and Coggins mines. The veins are sharply defined, near-vertical, and lie subparallel to schistosity in the …
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The Individual as Ecological: Reconstructing Identity in a Deweyan Vein
This dissertation will use the philosophy of John Dewey to develop a conception of the individual using an ecological model as an alternative to the atomistic type more typical of Western philosophy. An ecological model presents the individual as part of a biological and cultural milieu, but, …
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Biometric Person Identification Using Near-infrared Hand-dorsa Vein Images
… well as pattern recognition technologies. Hand vein patterns have been recognised as a good biometric measure for personal identification due to many excellent characteristics, such as uniqueness and stability, as well as difficulty to copy or forge. This thesis covers all the research and …
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Anatomical Relationship between Superior Mesenteric Artery and Left Renal Vein
"최근 다중검출기 CT 혈관조영술과 영상 재구성 프로그램의 발전은 복부혈관들의 해부학적 관계를 정확하게 평가할 수 있게 하였다. 상장간동맥의 분지각은 넛크래커증후군의 주된 원인으로 여겨지고 있으나 정상군의 수치는 아직 보고된 바가 없다. 따라서 다중검출기 CT 혈관조영술을 이용하여 정상군의 상장간동맥의 분지각 및 상장간동맥과 좌신정맥의 해부학적 관계를 알아보고자 하였다. 15세에서 25세사이의 비뇨기과적 자각증상이 없고, 뇨검사 및 일반혈액검사에서 이상소견이 없는 남자 33명을 대상으로 다중검출기 CT 혈관조영술을 시행하였다. …
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Effects of Elevated Intracranial Pressure on a Cerebral Vein Model
… and structural dynamics of a diploic vein were considered. This was done by performing transient coupled fluid-structure simulations on a segment of an intracranial vein that sought to replicate the ICP surge experienced during strangulation. The vessel model was created by isolating a …
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Hormonal and genetic control of leaf and vein development in maize
… pattern composed of parallel longitudinal veins (long veins) interlinked by transverse veins. The long veins are formed as the leaf grows wide early in the development. The small indolic plant hormone, auxin, controls leaf and vein development in plants. However, how it controls leaf and …
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The Characteristics of Right Hepatic Vein in Middle Hepatic Vein Dominant Type, and the Variation of Glissonian Pedicle at Left Lobe of the Liver, Using Cadaver Liver Dissection
… tried to evaluate the relation of right hepatic vein (RHV) and middle hepatic vein (MHV) because right lobe of the liver has been mainly used as a graft in living related donor liver transplantation. For left hemiliver, I had two concerns. The first one was to evaluate the feasibility of the …
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Risk factors for deep vein thrombosis in a South African public hospital
The evidence suggests an association between HIV, TB and DVT. There are no studies of this link in the Southern African setting, where the incidence of both of these conditions (HIV and TB) is high. We therefore undertook a study to define the incidence of HIV and TB in patients with confirmed DVT …
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Design and applicability of a mechanical impedance sensor for vein penetration detection
… for indicating that the needle has reached the vein by measuring the change in mechanical impedance of the needle as it passes through different tissue layers. Testing in a phantom indicated that this has the potential to identify transitions through tissue boundaries.
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