Video Experimental Relacionado

Updated: Feb 13, 2026

A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis

A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis

Published on: August 12, 2025

Placa-RADS y neovascularización para la estratificación del riesgo de estenosis carotídea: un estudio bimodal de

Huan Zhu¹, Qihang Zhang¹, Tong Liu¹

¹From the Beijing Neurosurgical Institute (H.Z., Q.Z., T.L., C.Z., T.Y., T.Y., X.L., Q.Z., J. Z., Y.Z.), Capital Medical University; Department of Neurosurgery (Q.Z., T.L., C.Z., T. Y., T.Y., X.L., Q.Z., J.Z., Y.Z.), Beijing Tiantan Hospital, Capital Medical University; Department of Radiology (T.C.), Beijing Tiantan Hospital, Capital Medical University; Department of Neurosurgery (W.L.), Peking University Third Hospital; Department of Neurosurgery (P.W.), The First Affiliated Hospital of Zhengzhou University; and China National Clinical Research Center for Neurological Diseases (W.L.).

AJNR. American journal of neuroradiology

|February 11, 2026

Resumen

La puntuación de la placa carotídea-RADS y la neovascularización intraplacal (IPN) son biomarcadores de imágenes independientes. Combinados, identifican eficazmente los eventos cerebrovasculares recientes en pacientes con estenosis carotídea.

Área de la Ciencia:

Imágenes de imágenes vasculares.
Investigación de Enfermedades Cerebrovasculares Investigación de Enfermedades Cerebrovasculares
El descubrimiento de biomarcadores.

Sus antecedentes:

La evaluación de la vulnerabilidad de la placa carotídea es crucial para la estratificación del riesgo de accidente cerebrovascular.
La neovascularización intraplacal (IPN) está relacionada con la progresión de la placa aterosclerótica.
La relación entre Plaque-RADS, IPN y estenosis carotídea sintomática necesita más aclaraciones.

Objetivo del estudio:

Investigar la interrelación entre las puntuaciones de la placa carotídea-RADS y la NPI.
Evaluar sus roles combinados e individuales en la identificación de eventos cerebrovasculares recientes en pacientes con estenosis carotídea.

Principales métodos:

Análisis retrospectivo de 128 pacientes con estenosis de la arteria carótida.
Caracterización integrada de la placa utilizando imágenes de la pared del vaso de resonancia magnética carotídea y ultrasonido con contraste mejorado.
Se desarrollaron y evaluaron modelos de regresión logística utilizando AUC, NRI e IDI.

Principales resultados:

Los pacientes con estenosis sintomática exhibieron puntuaciones más altas de Plaque-RADS, grados de IPN y volúmenes de placa.
Tanto el Plaque-RADS como el IPN se correlacionaron inversamente con la duración desde el inicio de los síntomas.
Un modelo combinado de Plaque-RADS e IPN demostró un rendimiento predictivo superior en comparación con los modelos de un solo indicador.

Conclusiones:

La puntuación RADS de la placa carotídea y el grado IPN son biomarcadores de imágenes independientes y complementarios.
Estos biomarcadores son valiosos para identificar eventos cerebrovasculares recientes en pacientes con estenosis carotídea.

Más Videos Relacionados

A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis

A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis

Published on: May 14, 2013

In vivo Near Infrared Fluorescence NIRF Intravascular Molecular Imaging of Inflammatory Plaque, a Multimodal Approach to Imaging of Atherosclerosis

In vivo Near Infrared Fluorescence NIRF Intravascular Molecular Imaging of Inflammatory Plaque, a Multimodal Approach to Imaging of Atherosclerosis

Published on: August 4, 2011

Videos de Conceptos Relacionados

Relative Risk

Relative Risk

Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...

Mitral Stenosis I: Introduction

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...

Factors Affecting the Risk of Infection

Factors Affecting the Risk of Infection

The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...

Imaging Studies VII: Vascular Imaging

Imaging Studies VII: Vascular Imaging

DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...

Imaging Studies II: Ultrasonography

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...

Mitral Stenosis III: Medical Management

Mitral Stenosis III: Medical Management

Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...