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

12 luglio 2026 aggiornato da: 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.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

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.

Tipo di studio

Osservativo

Iscrizione (Stimato)

350

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

Sì

Metodo di campionamento

Campione di probabilità

Popolazione di studio

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

Descrizione

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

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

Coorti e interventi

Gruppo / Coorte
Intervento / Trattamento
Observation group
Patients newly diagnosed with benign or malignant liver tumors
Test diagnostico: 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.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Vascular parameters in different types of benign and malignant liver tumors
Lasso di tempo: 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.

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Differences in treatment effectiveness between patient subgroups
Lasso di tempo: 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

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Eastern Hepatobiliary Surgery Hospital

Investigatori

  • Cattedra di studio: Hui Liu, Professor, Eastern Hepatobiliary Surgery Hospital

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

1 luglio 2026

Completamento primario (Stimato)

1 giugno 2027

Completamento dello studio (Stimato)

1 settembre 2027

Date di iscrizione allo studio

Primo inviato

3 luglio 2026

Primo inviato che soddisfa i criteri di controllo qualità

12 luglio 2026

Primo Inserito (Effettivo)

16 luglio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

16 luglio 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

12 luglio 2026

Ultimo verificato

1 luglio 2026

Maggiori informazioni

Termini relativi a questo studio

Parole chiave

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • EHBHK Y2024-H027-P001

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

INDECISO

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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