Contrast-Enhanced Ultrasound for Early Assessment of Microwave Ablation in HCC (SBS-CEUS)
A Diagnostic Pilot Study of Side-by-Side Contrast-Enhanced Ultrasound for Early Assessment of Microwave Ablation Efficacy in Hepatocellular Carcinoma
Hepatocellular carcinoma (HCC) is the sixth most common malignancy and the fourth leading cause of cancer-related deaths worldwide [1]. Although surgical resection remains the reference curative therapy, ultrasound-guided microwave ablation (MWA) yields comparable oncologic outcomes [2,3] and is endorsed as a first-line option in several national and international guidelines. A sufficient ablative ablation margins (AM) is pivotal for preventing local tumour progression (LTP) [4,5].
According to current consensus, technical success is judged one month after ablation using contrast-enhanced CT (CE-CT) or MRI (CE-MRI) together with long-term follow-up [6,7]. Yet, inflammatory changes within the ablation zone peak during the first few days, delaying reliable evaluation, increasing patient anxiety, and often necessitating multiple imaging sessions.In recent years, various fusion imaging methods have been used to assess AM after ablation in HCC patients, including CT-CT image fusion [8, 9], MR-MR image fusion [10, 11], and contrast-enhanced ultrasound (CEUS)-CT/MR image fusion [12, 13]. However, fusion imaging techniques require high-quality preoperative images, and post-operative liver displacement and deformation due to tumour removal can make image registration difficult.
Contrast-enhanced ultrasound (CEUS) is widely used in clinical practice due to its economic simplicity, lack of radiation, and ability to display lesion areas in real time [14-16]. Recently, fusion imaging based on 3D CEUS has been reported to show good accuracy in AM evaluation [17-19], but the assessment of AM for multiple ablations of multiple tumours remains uncertain.Therefore, the potential of CEUS for early assessment of AM should be further developed. Simultaneous-screen comparison contrast-enhanced ultrasound (SBS-CEUS) refers to the simultaneous comparison of arterial phase images before and after tumour ablation under the same settings of the ultrasound diagnostic instrument.Studies have shown [20] that SBS-CEUS has significant value in displaying liver lesions in difficult-to-visualise areas, but to date, no studies have systematically compared SBS-CEUS with CEUS in the assessment of AM.
This retrospective study therefore compared the diagnostic accuracy of SBS-CEUS versus CEUS for early (1-3 days) assessment of the AM after MWA in patients with HCC.
Aperçu de l'étude
Statut
Statut
Les conditions
Les conditions
Intervention / Traitement
Intervention / Traitement
Type d'étude
Type d'étude
Inscription (Réel)
Inscription
Phase
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Jilin
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Changchun, Jilin, Chine, 130021
- GE
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Critères de participation
Critère d'éligibilité
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
Inclusion Criteria:
a) HCC diagnosed according to EASL guidelines and confirmed by pathology and/or typical imaging features on CE-CT, CE-MRI, or CEUS;b) ≤3 lesions, each ≤5 cm, without vascular/bile-duct invasion or distant metastasis;c) CE-MRI performed at our centre ≤1 month before and ≤1 month after ablation (CE-CT for MRI-contraindicated patients) to serve as the reference standard;d)Baseline CEUS ≤7 days before MWA and follow-up CEUS 1-3 days after MWA .
Exclusion Criteria:
a) Severe comorbid disease;b) Missing mandatory imaging;c) Any condition judged by the investigators to preclude reliable data acquisition.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Dépistage
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Nombre de bras
Armes et Interventions
Groupe de participants / BrasGroupe de participants / Bras |
Intervention / TraitementIntervention / Traitement |
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Expérimental: Side-by-Side Contrast-Enhanced Ultrasound for Early Assessment of Microwave Ablation Efficacy in HCC
Side-by-Side Contrast-Enhanced Ultrasound is performed 1-3 days after MWA surgery.
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Side-by-Side Contrast-Enhanced Ultrasound is performed 1-3 days after MWA surgery, with contrast-enhanced MRI or CT one month after microwave ablation as the reference standard. Contrast-Enhanced Ultrasound is performed within 7 days before MWA surgery and 1-3 days after surgery, with contrast-enhanced MRI or CT one month after microwave ablation as the reference standard. |
Que mesure l'étude ?
Principaux critères de jugement
Principaux critères de jugement
Mesure des résultats |
Délai |
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Side-by-Side Contrast-Enhanced Ultrasound and Contrast-Enhanced Ultrasound were used to evaluate the efficacy of microwave ablation for hepatocellular carcinoma. Based on the minimum distance between the tumour margin and the ablation zone, early postope
Délai: Contrast-enhanced ultrasound (CEUS) was performed within 7 days prior to microwave ablation for hepatocellular carcinoma, and side-by-side contrast-enhanced ultrasound and contrast-enhanced ultrasound were performed simultaneously within 1-3 days after t
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Contrast-enhanced ultrasound (CEUS) was performed within 7 days prior to microwave ablation for hepatocellular carcinoma, and side-by-side contrast-enhanced ultrasound and contrast-enhanced ultrasound were performed simultaneously within 1-3 days after t
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Collaborateurs et enquêteurs
Parrainer
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Début de l'étude
Achèvement primaire (Réel)
Achèvement primaire
Achèvement de l'étude (Réel)
Achèvement de l'étude
Dates d'inscription aux études
Première soumission
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Première publication
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour publiée
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
Autres numéros d'identification d'étude
- 2023-KS-233
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