Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Cluster Sampling Method01:20

Cluster Sampling Method

14.7K
Appropriate sampling methods ensure that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
14.7K
Automatic Processing and Automatic Social Behavior01:28

Automatic Processing and Automatic Social Behavior

253
Automatic processing refers to the cognitive operations that occur without conscious intent or awareness, playing a fundamental role in shaping social cognition and behavior. These processes enable individuals to navigate complex social environments efficiently by relying on mental shortcuts and pre-existing knowledge structures known as schemas. One of the most influential mechanisms underlying automatic processing is priming, which subtly activates mental representations through exposure to...
253
Vesicular Tubular Clusters01:45

Vesicular Tubular Clusters

3.2K
After budding out from the ER membrane, some COPII vesicles lose their coat and fuse with one another to form larger vesicles and interconnected tubules called vesicular tubular clusters or VTCs. These clusters constitute a compartment at the ER-Golgi interface known as ERGIC (Endoplasmic Reticulum Golgi Intermediate Compartment). The ERGIC is a mobile membrane-bound cargo transport system that sorts proteins secreted from ER and delivers them to the Golgi.
With the help of motor proteins such...
3.2K
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

883
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
883
Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

608
Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
608
Methods of Sterilization I: Physical Methods01:29

Methods of Sterilization I: Physical Methods

23.6K
As used in a healthcare facility, sterilization destroys all microorganisms through physical or chemical methods. The physical method includes steam, dry heat, boiling water, and radiation.
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...
23.6K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Request and reporting models for computed tomography in the multidisciplinary management of cancer patients: consensus between the Italian Society of Medical and Interventional Radiology (SIRM) and the Italian Society of Medical Oncology (AIOM).

La Radiologia medica·2026
Same author

Diagnostic performance of CT-based node-RADS for detecting metastatic lymph nodes in melanoma and comparison with short-axis and roundness index.

Clinical imaging·2026
Same author

Human-AI Interaction in Interventional Radiology: A Narrative Review of Current Applications, Challenges, and Future Directions.

Journal of imaging·2026
Same author

Splenic FDG PET uptake and CT volume as prognostic biomarkers in diffuse large B cell lymphoma.

La Radiologia medica·2026
Same author

Interventional radiology management of disc herniation: a narrative review.

La Radiologia medica·2026
Same author

An alternative to inside-out access for central venous catheter placement in thoracic central vein obstruction.

The journal of vascular access·2026

Video Experimental Relacionado

Updated: Feb 3, 2026

Author Spotlight: Bridging Gaps in Anatomy and Establishing a Foundation for Algorithmic Studies
04:25

Author Spotlight: Bridging Gaps in Anatomy and Establishing a Foundation for Algorithmic Studies

Published on: December 15, 2023

3.8K

Segmentación automática de linfedema en RM T2-STIR mediante un método de agrupación no supervisado

Maurizio Cè1, Marius Chiriac2, Alberto Cabri3

  • 1Radiology Department, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Via Francesco Sforza 35, 20122, Milano, Italy.

La Radiologia medica
|February 1, 2026
PubMed
Resumen

Un método de inteligencia artificial (IA) no supervisado automatiza la segmentación de líquidos en RM T2-STIR para el linfedema. Esta herramienta de IA ayuda en la evaluación objetiva y el seguimiento de la progresión del linfedema y el lipoedema.

Palabras clave:
Inteligencia artificialSegmentación de edemaAgrupación K-meansLinfedemaLinfografía por RMAprendizaje no supervisado

Más Videos Relacionados

A Revised Method for Inducing Secondary Lymphedema in the Hindlimb of Mice
09:50

A Revised Method for Inducing Secondary Lymphedema in the Hindlimb of Mice

Published on: November 2, 2019

8.7K
Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping
10:25

Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping

Published on: September 25, 2019

49.4K

Videos de Experimentos Relacionados

Last Updated: Feb 3, 2026

Author Spotlight: Bridging Gaps in Anatomy and Establishing a Foundation for Algorithmic Studies
04:25

Author Spotlight: Bridging Gaps in Anatomy and Establishing a Foundation for Algorithmic Studies

Published on: December 15, 2023

3.8K
A Revised Method for Inducing Secondary Lymphedema in the Hindlimb of Mice
09:50

A Revised Method for Inducing Secondary Lymphedema in the Hindlimb of Mice

Published on: November 2, 2019

8.7K
Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping
10:25

Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping

Published on: September 25, 2019

49.4K

Área de la Ciencia:

  • Imagenología Médica
  • Inteligencia Artificial
  • Análisis Cuantitativo

Sus antecedentes:

  • La evaluación del linfedema y el lipoedema a menudo se basa en la interpretación subjetiva de las imágenes.
  • La cuantificación precisa del volumen y la distribución del edema es crucial para un manejo eficaz.

Objetivo del estudio:

  • Desarrollar y validar un método de IA no supervisado para la segmentación automatizada de líquidos en RM T2-STIR.
  • Evaluar cuantitativamente el edema en pacientes con linfedema y lipoedema.

Principales métodos:

  • Análisis retrospectivo de 20 pacientes con linfedema o lipoedema.
  • Algoritmo de agrupación K-means para la segmentación de imágenes, optimizado mediante el coeficiente de similitud de Dice.
  • Aprendizaje por transferencia aplicado a un conjunto de prueba para la evaluación del rendimiento y el análisis 3D.

Principales resultados:

  • El modelo de IA logró un coeficiente de similitud de Dice de al menos 0.8 en el conjunto de entrenamiento.
  • El modelo demostró una buena concordancia con la segmentación manual en el conjunto de prueba (puntuación de Dice 0.74 ± 0.05).
  • Las visualizaciones incluyeron mapas de color y gráficos de líneas apiladas para la distribución del edema y el seguimiento longitudinal.

Conclusiones:

  • El método de IA no supervisado muestra potencial para la segmentación y cuantificación automatizada y objetiva del edema en RM T2-STIR.
  • Este enfoque puede ayudar en el diagnóstico, la estadificación y el seguimiento del tratamiento del linfedema y el lipoedema.