La radiologia medica

, Volume 116, Issue 5, pp 734–748

High-intensity focused ultrasound (HIFU) in patients with solid malignancies: evaluation of feasibility, local tumour response and clinical results

  • G. Orgera
  • L. Monfardini
  • P. Della Vigna
  • L. Zhang
  • G. Bonomo
  • P. Arnone
  • M. Padrenostro
  • F. Orsi
Abdominal Radiology / Radiologia Addominale

Abstract

Purpose

The purpose of this study was to evaluate the safety and efficacy of ultrasound-guided high-intensity focused ultrasound (USgHIFU) for ablation of solid tumours without damaging the surrounding structures.

Materials and methods

A specific written informed consent was obtained from every patient before treatment. From September 2008 to April 2009, 22 patients with 29 lesions were treated: nine patients with liver and/or soft-tissue metastases from colorectal carcinoma (CRC), six with pancreatic solid lesions, three with liver and/or bone metastases from breast cancer, one with osteosarcoma, one with muscle metastasis from lung cancer, one with iliac metastasis from multiple myeloma and one with abdominal liposarcoma. The mean diameter of tumours was 4.2 cm. All patients were evaluated 1 day, 1 month and 3 months after HIFU treatment by multidetector computed tomography (MDCT), positron-emission tomography (PET)-CT and clinical evaluation. The treatment time and adverse events were recorded.

Results

All patients had one treatment. Average treatment and sonication times were, respectively, 162.7 and 37.4 min. PET-CT or/and MDCT showed complete response in 11/13 liver metastases; all bone, soft-tissue and pancreatic lesions were palliated in symptoms, with complete response to PET-CT, MDCT or magnetic resonance imaging (MRI); the liposarcoma was almost completely ablated at MRI. Local oedema was observed in three patients. No other side effects were observed. All patients were discharged 1–3 days after treatment.

Conclusions

According to our preliminary experience in a small number of patients, we conclude that HIFU ablation is a safe and feasible technique for locoregional treatment and is effective in pain control.

Keywords

High-intensity focused ultrasound (HIFU) Solid tumours Ablation 

Ultrasuoni focalizzati ad elevata intensità (HIFU) in pazienti con tumori solidi. Valutazione della fattibilità, della risposta locale e dei risultati clinici

Riassunto

Obiettivo

L’obiettivo di questo studio è stato quello di valutare la sicurezza e l’efficacia dell’applicazione degli ultrasuoni focalizzati ad elevata intensità (USgHIFU) nell’ablazione terapeutica di tumori solidi senza danneggiare le strutture circostanti.

Materiali e metodi

Uno specifico consenso informato scritto è stato ottenuto da tutti i pazienti prima del trattamento. Da settembre 2008 ad aprile 2009 sono stati trattati 22 pazienti con 29 lesioni: 9 pazienti con metastasi epatiche e/o dei tessuti molli da carcinoma del colon retto (CRC), sei pazienti con lesioni solide del pancreas, tre con metastasi epatiche e/o ossee da tumore mammario, uno con osteosarcoma, uno con metastasi muscolare da tumore del polmone, uno con lesione iliaca da mieloma multiplo ed uno con liposarcoma addominale. Il diametro medio era di 4,2 cm. Tutti i pazienti sono stati valutati ad 1 giorno, 1 mese e a 3 mesi di distanza dal trattamento HIFU con tomografia computerizzata multidetettore (MDCT), tomografia computerizzata con tomografia ad emissione di positroni (PET-CT) e valutazione clinica. La durata del trattamento e gli eventi avversi sono stati registrati.

Risultati

Tutti i pazienti sono stati trattati in una unica sessione. Il tempo medio di trattamento e di sonazione sono stati di 162,7 e 37,4 minuti, rispettivamente. PET-CT e/o MDCT hanno mostrato risposta completa in 11/13 metastasi epatiche; tutte le lesioni ossee, dei tessuti molli e le lesioni pancreatiche sono state palliate nei sintomi, con risposta completa all’esame PET-CT, MDCT o risonanza magnetica (RM); il liposarcoma ha mostrato una ablazione quasi completa all’esame RM. Edema locale è stato osservato in tre pazienti senza ulteriori eventi avversi. Tutti i pazienti sono stati dimessi da 1 a 3 giorni dopo il trattamento.

Conclusioni

Secondo la nostra esperienza preliminare da un limitato numero di pazienti, l’ablazione USgHIFU può essere considerata una metodica sicura e fattibile in assenza di alternative terapeutiche locoregionali e valida per il controllo del dolore.

Parole chiave

Ultrasuoni focalizzati ad elevata intensità (HIFU) Tumori solidi Ablazione 

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Copyright information

© Springer-Verlag Italia 2011

Authors and Affiliations

  • G. Orgera
    • 1
  • L. Monfardini
    • 1
  • P. Della Vigna
    • 1
  • L. Zhang
    • 2
  • G. Bonomo
    • 1
  • P. Arnone
    • 3
  • M. Padrenostro
    • 4
  • F. Orsi
    • 1
  1. 1.Interventional Radiology Unit of European Institute of OncologyMilanItaly
  2. 2.Clinical Center for Tumor Therapy of 2nd Hospital of Chongqing University of Medical SciencesChongqingChina
  3. 3.Division of Senology of European Institute of OncologyMilanItaly
  4. 4.School of MedicineUniversity of MilanMilanItaly

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