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Benefits of 3D technique in guiding percutaneous retroperitoneal biopsies

Vantaggi dell’utilizzo della tecnica 3D mediante TC nelle biopsie retroperitoneali

  • Abdominal Radiology / Radiologia Addominale
  • Published:
La radiologia medica Aims and scope Submit manuscript

Abstract

Purpose

This study aimed to assess the usefulness and advantages of multiplanar reformations (MPR) during multidetector-row computed tomography (MDCT)-guided percutaneous fine-needle aspiration biopsy (FNAB) and core biopsy of retroperitoneal lesions that are difficult to access with the guidance of ultrasound and axial CT alone owing to overlying bony structures, large vessels or abdominal organs.

Materials and methods

MDCT-guided retroperitoneal FNAB and core biopsy was performed on 14 patients with suspected retroperitoneal neoplasm. We used MPR images (sagittal and coronal) obtained with a six-detector-row MDCT scanner and 20–22 gauge Chiba needles.

Results

Using MDCT with 3D MPR allowed biological samples to be obtained in all cases (ten cytological and four histological) and diagnostic samples in 11/14 cases (78.5%). Histological samples were deemed adequate for diagnostic assessment in all cases and cytological samples in 7/10 cases (70%).

Conclusions

MPR images allowed sampling of retroperitoneal lesions until now considered unreachable with the guidance of axial MDCT alone. Compared with the conventional procedure, the use of MPR images does not increase the procedure time.

Riassunto

Obiettivo

Obiettivo del nostro studio è stato quello di valutare i possibili vantaggi dell’utilizzo della tecnica multiplanar reformations (MPR) nell’agoaspirazione con ago sottile (FNAB) e nell’agobiopsia percutanea guidata da tomografia computerizzata (TC)-multidetettore (TCMD) di lesioni retroperitoneali difficili da raggiungere con la guida ecografica e con il solo ausilio delle immagini TC assiali, in quanto coperte da segmenti scheletrici, vasi, strutture nervose e organi addominali.

Materiali e metodi

Abbiamo eseguito 14 FNAB/agobiopsie retroperitoneali di lesioni retroperitoneali difficilmente raggiungibili con guida ecografica o con guida di immagini assiali TCMD. Sono state utilizzate immagini MPR (sagittali e coronali) ottenute con scanner TCMD a 6 strati; sono stati impiegati aghi Chiba Point da 20–22 gauge ad aghi trancianti da 18 G (G).

Risultati

L’utilizzo di immagini tridimensionali MPR ha permesso in tutti i casi il prelievo di materiale biologico (10 di tipo citologico e 4 di tipo istologico) e in 11 su 14 casi (78,5%) il prelievo è risultato adeguato per un giudizio diagnostico. I prelievi istologici sono risultati adeguati per la diagnosi in tutti casi, quelli citologici in 7 su 10 casi (70%).

Conclusioni

Le immagini MPR ottenute con TCMD hanno permesso di raggiungere lesioni retroperitoneali considerate un tempo difficilmente accessibili o inaccessibili con la guida delle immagini TCMD assiali. L’impiego delle immagini MPR, inoltre, non incrementa il tempo di esecuzione del prelievo.

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Authors and Affiliations

  1. Department of Clinic Sciences, Section of Radiological Sciences, University of Parma, Via Gramsci 14, 43100, Parma, Italy

    M. De Filippo, F. Gira, N. Sverzellati & C. Rossi

  2. Department of Pathology and Laboratory Medicine, Section of Pathology, University of Parma, Via Gramsci 14, 43100, Parma, Italy

    D. Corradi

  3. Department of Radiology, Sant’Orsola-Malpighi Hospital, University of Bologna, Via Massarenti 9, 40138, Bologna, Italy

    M. Zompatori

Authors
  1. M. De Filippo
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  2. F. Gira
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  3. D. Corradi
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  4. N. Sverzellati
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  5. M. Zompatori
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  6. C. Rossi
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Correspondence to M. De Filippo.

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De Filippo, M., Gira, F., Corradi, D. et al. Benefits of 3D technique in guiding percutaneous retroperitoneal biopsies. Radiol med 116, 407–416 (2011). https://doi.org/10.1007/s11547-010-0604-2

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  • DOI: https://doi.org/10.1007/s11547-010-0604-2

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