Comparative study of CT guided versus USG guided biopsy of peripherally situated lung masses

Volume : VII, Issue : IV, April - 2018

Dr. Ajay Upadhyay, Dr. Jaideep J Jagani

Introduction: Computed tomography (CT) guided biopsies of lung masses have been in use since long to take

biopsy of lung masses. That has been proved as standard technique to get histopathological diagnosis of

underlying mass lesion.

Ultrasound guided biopsy of pleural based peripherally situated mass lesion is nowadays popular method and has advantage of real time

technique with fast and radiation free technique and can be done in ultrasound room or bed side. In this study we aim to do comparative

study of USG and CT guided biopsy in peripheral lung masses.

Methods and Material: A study of 50 cases was carried out in department of Radio-diagnosis at GCS Medical College, Hospital and

Research center and record of both methods were kept for comparison. Biopsies were done on CT table in CT scan room under CT / USG

guidance with standby anesthetic and patient kept for observation in recovery room.

Results: Out of 50 patients, 30 patients in which mass was seen under USG and no lung parenchyma was seen in between mass and pleura

were done using USG guidance. Needle insertion was done under USG guidance and then con􀃶rmed on CT scan. In 20 patients CT guidance

was used as lesion was not visualized on USG.

Conclusions: For pleural based large lesions (lesion greater than 3 cm), ultrasound guided biopsy is modality of choice as ease of procedure

with real time approach, low rate of complications, lower time consuming and radiation free technique while CT is ideal for small lesion

which cannot be seen on USG, intra parenchymal deeply situated lesion and lesion behind rib.