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Related Concept Videos

Anatomy of Blood Vessels01:20

Anatomy of Blood Vessels

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The vascular system, an integral part of the circulatory system, comprises various blood vessels that play crucial roles in maintaining the body's homeostasis. These blood vessels form a complex and efficient circulatory network. The three primary categories of blood vessels are the arteries, veins, and capillaries.
Arteries
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Structure of Blood Vessels01:15

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Blood is circulated throughout the human body through a network of blood vessels called the circulatory system. This system includes arteries that transport blood from the heart to various body parts. These arterial pathways divide into smaller vessels until they reach the arterioles, which further split into capillaries. It is within these minuscule capillaries that the exchange of nutrients and waste products takes place. After this exchange, the blood is collected by venules, which fuse to...
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Development of Blood Vessels01:07

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The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
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Overview of Blood Vessels01:14

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The human cardiovascular system comprises five primary types of blood vessels: arteries, arterioles, veins, venules, and capillaries, each serving unique functions.
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Lymphatic Vessels and Lymph Transport01:16

Lymphatic Vessels and Lymph Transport

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Lymphatic vessels, known as lymphatics, are crucial in transporting lymph from peripheral tissues to our venous system. This process begins with lymph entering through tiny capillaries that branch through tissues. These capillaries have unique features such as larger diameters, thinner walls, and a distinctive one-way valve system formed by overlapping endothelial cells.
This one-way system allows fluids, solutes, and even pathogens to enter but prevents their return to the intercellular...
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Introduction
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
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[Small vessel cerebrovascular disease].

P Cardona Portela1, A Escrig Avellaneda2

  • 1Servicio de Neurología, Hospital Universitario de Bellvitge, L'Hospitalet de Llobregat, España.

Hipertension Y Riesgo Vascular
|May 14, 2018
PubMed
Summary

Small vessel vascular disease encompasses conditions like lacunar infarction, linked mainly to hypertension. Characteristic MRI findings help identify risk factors and predict prognosis for these cerebrovascular conditions.

Keywords:
HipertensiónHypertensionInfartoLacunarLacunar strokeLeucoaraiosisLeuocaraiosisMicrobleedsMicrosangradosSmall vessel diseaseSustancia blancaThrombolysisTrombolisisVaso pequeñoWhite matter

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Area of Science:

  • Neurology
  • Vascular Medicine
  • Radiology

Background:

  • Small vessel vascular disease (SVVD) is a group of conditions affecting small arteries, arterioles, and capillaries in the brain.
  • Key manifestations include lacunar infarction, white matter changes, and microbleeds.
  • Hypertension is the primary risk factor for SVVD.

Purpose of the Study:

  • To explore the spectrum of small vessel vascular disease.
  • To investigate the role of hypertension and other vascular risk factors.
  • To evaluate the diagnostic and prognostic value of MRI findings in SVVD.

Main Methods:

  • Review of characteristic MRI findings in small vessel vascular disease.
  • Correlation of imaging biomarkers with clinical risk factors.
  • Analysis of the prognostic implications of identified lesions.

Main Results:

  • MRI findings are distinctive biomarkers for SVVD.
  • Hypertension is the principal risk factor, but atherothrombotic lesions can occur, especially in large lacunar infarctions.
  • MRI aids in differentiating the impact of various risk factors and their prognostic significance.

Conclusions:

  • MRI is crucial for diagnosing and understanding small vessel vascular disease.
  • Characteristic lesions on MRI allow for risk factor assessment and prognosis determination.
  • Further research can refine the use of MRI in managing SVVD.