Nuclear medicine communications · 2020
Robotic-assisted computed tomography-guided 18F-FDG PET/computed tomography-directed biopsy for diagnosis of intra thoracic lesions: An experience from a tertiary care centre in North India.
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Nath Alok, Prashanth Arun, Lal Hira, Kumar Sheo, Barai Sukanta, Gambhir Sanjay
Аннотация
OBJECTIVE: The aim of this study was to assess the diagnostic yield of robotic-assisted computed tomography (CT)-guided F-FDG PET/CT-directed biopsy for the evaluation of intrathoracic space occupying lesions.
METHODS: Twenty-four patients being evaluated for intrathoracic masses were included in the study. The indications were patients with unknown/likely primary detected from PET-CT, suspicious lesions identified from PET-CT in a known primary disease and fine needle aspiration cytology/CT-guided biopsy negative lesions with a high index of suspicion for malignancy. Biopsies were carried out with the help of automated radiology arm (ROBIO-EX) which is essentially a needle positioning and holding device. A two-day protocol was followed in which PET-CT scan was done on the first day, biopsy procedure was done on the next scheduled day. PET images were refused with the CT images done on the second day in the console by using manual alignment and then a biopsy was carried out with the help of a robotic arm. Primary outcome was histopathological yield from the obtained specimens.
RESULTS: Tissue yield was 100% (n = 24) and histopathological diagnosis rate was 96% (n = 23). Out of the 24 lesions biopsied 30% (n = 8) were benign and 70% (n = 16) turned out to be malignant. The complication rates were pneumothorax 4% (n = 1) and haemothorax 4% (n = 1).
CONCLUSION: Robotic-assisted CT-guided F-FDG PET/CT-directed biopsy is a useful and accurate technique for diagnostic evaluation of intrathoracic neoplasms with minimal complications rates as compared with conventional imaging techniques.
METHODS: Twenty-four patients being evaluated for intrathoracic masses were included in the study. The indications were patients with unknown/likely primary detected from PET-CT, suspicious lesions identified from PET-CT in a known primary disease and fine needle aspiration cytology/CT-guided biopsy negative lesions with a high index of suspicion for malignancy. Biopsies were carried out with the help of automated radiology arm (ROBIO-EX) which is essentially a needle positioning and holding device. A two-day protocol was followed in which PET-CT scan was done on the first day, biopsy procedure was done on the next scheduled day. PET images were refused with the CT images done on the second day in the console by using manual alignment and then a biopsy was carried out with the help of a robotic arm. Primary outcome was histopathological yield from the obtained specimens.
RESULTS: Tissue yield was 100% (n = 24) and histopathological diagnosis rate was 96% (n = 23). Out of the 24 lesions biopsied 30% (n = 8) were benign and 70% (n = 16) turned out to be malignant. The complication rates were pneumothorax 4% (n = 1) and haemothorax 4% (n = 1).
CONCLUSION: Robotic-assisted CT-guided F-FDG PET/CT-directed biopsy is a useful and accurate technique for diagnostic evaluation of intrathoracic neoplasms with minimal complications rates as compared with conventional imaging techniques.