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Application of Super-Resolution Ultrasound (SRUS) in Liver Tumor (SRUS)

12 juillet 2026 mis à jour par: WenLi Zhang, Eastern Hepatobiliary Surgery Hospital

The macroscopic vascular supply of liver tumors varies considerably according to histological subtype, lesion size, and disease stage. Current clinical imaging modalities primarily characterize liver tumors based on their macroscopic vascular perfusion patterns. Conventional color Doppler ultrasonography enables qualitative assessment of tumor vascularity, facilitates the differentiation of benign from malignant hepatic lesions, delineates the anatomical relationship between tumors and major intrahepatic vessels, and detects vascular invasion. Nevertheless, these macroscopic vascular characteristics arise from complex microvascular architectures, including vascular distribution patterns, microvessel density, vessel morphology and tortuosity, blood flow velocity, and flow direction. Despite the critical role of tumor microcirculation in tumor progression and therapeutic response, the heterogeneity of microvascular hemodynamics among different liver tumors remains inadequately characterized.

The emergence of Super Resolution Ultrasound Imaging (SRUS) has markedly advanced ultrasound imaging by overcoming the acoustic diffraction limit, enabling visualization of microvessels with diameters as small as approximately 20 μm. Unlike conventional ultrasound techniques, SRUS preserves the inherent advantages of ultrasound, including deep tissue penetration and a large field of view, while achieving an approximately tenfold improvement in spatial resolution. This unique combination effectively bridges the long-standing gap between imaging depth and spatial resolution in vascular imaging. Furthermore, by localizing and tracking individual circulating microbubbles,SRUS enables quantitative assessment of microvascular blood flow velocity over a broad dynamic range without Doppler angle dependence. Consequently, super-resolution ultrasound imaging offers an unprecedented opportunity to characterize and compare the microvascular hemodynamic features of benign and malignant liver lesions, thereby improving the accuracy of preoperative differential diagnosis, tumor staging, therapeutic response assessment, and prognostic evaluation.

Aperçu de l'étude

Statut

Pas encore de recrutement

Les conditions

Intervention / Traitement

Description détaillée

The macroscopic vascular supply of liver tumors varies considerably according to histological subtype, lesion size, and disease stage. Current clinical imaging modalities primarily characterize liver tumors based on their macroscopic vascular perfusion patterns. Conventional color Doppler ultrasonography enables qualitative assessment of tumor vascularity, facilitates the differentiation of benign from malignant hepatic lesions, delineates the anatomical relationship between tumors and major intrahepatic vessels, and detects vascular invasion. Nevertheless, these macroscopic vascular characteristics arise from complex microvascular architectures, including vascular distribution patterns, microvessel density, vessel morphology and tortuosity, blood flow velocity, and flow direction. Despite the critical role of tumor microcirculation in tumor progression and therapeutic response, the heterogeneity of microvascular hemodynamics among different liver tumors remains inadequately characterized.

The emergence of Super Resolution Ultrasound Imaging (SRUS) has markedly advanced ultrasound imaging by overcoming the acoustic diffraction limit, enabling visualization of microvessels with diameters as small as approximately 20 μm. Unlike conventional ultrasound techniques, SRUS preserves the inherent advantages of ultrasound, including deep tissue penetration and a large field of view, while achieving an approximately tenfold improvement in spatial resolution. This unique combination effectively bridges the long-standing gap between imaging depth and spatial resolution in vascular imaging. Furthermore, by localizing and tracking individual circulating microbubbles,SRUS enables quantitative assessment of microvascular blood flow velocity over a broad dynamic range without Doppler angle dependence. Consequently, super-resolution ultrasound imaging offers an unprecedented opportunity to characterize and compare the microvascular hemodynamic features of benign and malignant liver lesions, thereby improving the accuracy of preoperative differential diagnosis, tumor staging, therapeutic response assessment, and prognostic evaluation.

Type d'étude

Observationnel

Inscription (Estimé)

350

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Sauvegarde des contacts de l'étude

  • Nom: Jing He
  • Numéro de téléphone: +86 18244242460
  • E-mail: G174265@163.com

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte
  • Adulte plus âgé

Accepte les volontaires sains

Oui

Méthode d'échantillonnage

Échantillon de probabilité

Population étudiée

Liver tumor patients treated in the outpatient and inpatient departments of the Third Affiliated Hospital of the Naval Medical University.

La description

Inclusion Criteria:

  1. Any gender, 18 years or older;

  2. People newly diagnosed with liver tumors, including:

    ① Hepatocellular carcinoma; ② Cholangiocarcinoma; ③ Liver metastases; ④ Liver hemangioma; ⑤ Focal nodular hyperplasia of the liver.

  3. Need to have a contrast-enhanced ultrasound as part of routine care;
  4. Willing to join this study and sign the informed consent after discussing it with the doctor.

Exclusion Criteria:

  1. During the data collection process, if the participant is unable to cooperate fully, preventing the collection from being completed;
  2. If the skin in the collection area is broken or scabbed, or if there's too much ascites in the abdominal cavity interfering with sound signal penetration, making data collection impossible;
  3. Previous puncture biopsy or other treatments for existing liver malignant tumors;
  4. Patients with a history of allergy, allergic constitution, or severe intolerance to sulfur hexafluoride or other components of the ultrasound contrast agent;
  5. Patients who refuse to participate in this study;
  6. Any uncontrollable comorbidities that could limit the patient's adherence to the study requirements or affect their ability to sign the written informed consent;
  7. Poor overall condition or inability to tolerate relevant examinations;
  8. Participants whom the researcher deems unsuitable for inclusion in the study

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

Cohortes et interventions

Groupe / Cohorte
Intervention / Traitement
Observation group
Patients newly diagnosed with benign or malignant liver tumors
Test diagnostique: Perform super-resolution ultrasound imaging on the study population
Perform super-resolution ultrasound imaging on the study population, record and calculate characteristic hemodynamic and morphological parameters, and analyze microvascular flow patterns.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Vascular parameters in different types of benign and malignant liver tumors
Délai: At the time of initial diagnostic imaging (baseline), with pathological confirmation from subsequent surgical resection or biopsy obtained during the same hospitalization period.
Assessing the differences in vascular parameters between different types of benign and malignant liver tumors
At the time of initial diagnostic imaging (baseline), with pathological confirmation from subsequent surgical resection or biopsy obtained during the same hospitalization period.

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Differences in treatment effectiveness between patient subgroups
Délai: From date of treatment initiation until the date of first documented pathological or imaging response assessment, assessed up to 12 months

Treatment effectiveness is assessed using two different methods depending on the treatment modality:

Pathological assessment (for patients who undergo surgical resection):

A. Pathological complete response (pCR): no viable tumor cells detected in the postoperative specimen; B. Major pathological response (MPR): ≥50% reduction in the proportion of viable tumor cells compared to the baseline pretreatment specimen;

Imaging assessment based on mRECIST criteria (for patients who do not undergo surgery):

A. Complete Response (CR): disappearance of any intratumoral arterial enhancement in all target lesions B. Partial Response (PR): ≥30% decrease in the sum of diameters of viable target lesion C. Progressive Disease (PD): ≥20% increase in the sum of diameters of viable target lesions, taking as reference the smallest sum of diameters recorded since treatment started D. Stable Disease (SD): insufficient decrease to qualify for PR, and insufficient increase to qualify for PD
From date of treatment initiation until the date of first documented pathological or imaging response assessment, assessed up to 12 months

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Eastern Hepatobiliary Surgery Hospital

Les enquêteurs

  • Chaise d'étude: Hui Liu, Professor, Eastern Hepatobiliary Surgery Hospital

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Estimé)

1 juillet 2026

Achèvement primaire (Estimé)

1 juin 2027

Achèvement de l'étude (Estimé)

1 septembre 2027

Dates d'inscription aux études

Première soumission

3 juillet 2026

Première soumission répondant aux critères de contrôle qualité

12 juillet 2026

Première publication (Réel)

16 juillet 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

16 juillet 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

12 juillet 2026

Dernière vérification

1 juillet 2026

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • EHBHK Y2024-H027-P001

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

INDÉCIS

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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