Dr Iyengaran H


Objective of this study is to evaluate the Robot-assisted Navigation System for CT-guided Intervention procedures with the assessment of the accuracy of needle placement, radiation dose and performance level. All the procedures were done using MAXIO (Perfint healthcare Pvt Ltd.) machine using 16 slice CT scanners, under local anesthesia and aseptic precautions, under the supervision of trained radiologists. After marking the point of entry and target lesion, path of the needle is confirmed on the planning software and the system calculates, coordinates angle & depth and positions the biopsy arm. All procedures were successfully performed. Procedure duration, radiation dose precision of needle Diagnostic performance of the biopsy and rate of complications were evaluated. .This method is more patient friendly and ensures maximum safety. The average procedure time and radiation exposure is reduced by 70% as compared to the routine manual method. This clinical trial depicts the advantages of the automated CT guided planner in reducing the procedure time and radiation dose and ensuring patient safety with high diagnostic accuracy, thus making it acceptable for the routine clinical practice.


Interventional non-vascular, Oncology, Percutaneous, Localization, Ablation procedures.

Full Text:



MacMahon H, Austin JH, Gamsu G, Herold CJ, Jett JR, Naidich DP, Patz EF Jr, Swensen SJ, Fleischner Society (2005) Guidelines for management of small pulmonary nodules detected on CT scans: a statement from the Fleischner Society. Radiology 237:395–400

Naidich DP, Bankier AA, MacMahon H, Schaefer-Prokop CM, Pistolesi M, Goo JM, Macchiarini P, Crapo JD, Herold CJ, Austin JH, Travis WD (2013) Recommendations for the management of subsolidpulmonari nodules detected at CT: a statement from the Fleischner Society. Radiology 266:304–317

Lal H, Neyaz Z, Nath A, Borah S (2012) CT-guided percutaneous biopsy of intrathoracic lesions. Korean J Radiol 13:210–226

Kim GR, Hur J, Lee SM, Lee HJ, Hong YJ, Nam JE, Kim HS, Kim YJ, Choi BW, Kim TH, Choe KO (2011) CT fluoroscopy-guided lung biopsy versus conventional CT-guided lung biopsy: a prospec-tive controlled study to assess radiation doses and diagnostic perfor-mance. EurRadiol 21:232–239

Prosch H, Stadler A, Schilling M, Bürklin S, Eisenhuber E, Schober E, Mostbeck G (2012) CT fluoroscopy-guided vs. multislice CT biopsy mode-guided lung biopsies: accuracy, complications and ra-diation dose. Eur J Radiol 81:1029–1033

Hong CW, Xu S, Imbesi KL, Wood BJ (2013) Integrated laser-guided CT biopsy. Clin Imaging 37:1135–1137

Grasso RF, Faiella E, Luppi G, Schena E, Giurazza F, Del Vescovo R, D'Agostino F, Cazzato RL, BeomonteZobel B (2013) Percutaneous lung biopsy: comparison between an augmented reality CT naviga-tion system and standard CT-guided technique. Int J Comput Assist RadiolSurg 8:837–848

Kettenbach J, Kronreif G, Melzer A, Fichtinger G, Stoianovici D, Cleary K (2007) Ultrasound-, CT- and MR-guided robot-assisted interventions. In: Neri E, Caramella D, Bartolozzi C (eds) Image processing in radiology: current applications. Springer, Heidelberg, pp 391–404

Koethe Y, Xu S, Velusamy G, Wood BJ, Venkatesan AM (2014) Accuracy and efficacy of percutaneous biopsy and ablation using robotic assistance under computed tomography guidance: a phantom study. EurRadiol 24(3):723–730

Abdullah BJ, Yeong CH, Goh KL, Yoong BK, Ho GF, Yim CC, Kulkarni A (2014) Robot-assisted radiofrequency ablation of primary and secondary liver tumours: early experience. EurRadiol 24:79–85

Sacks D, McClenny TE, Cardella JF, Lewis CA (2003) Society of Interventional Radiology clinical practice guidelines. J VascIntervRadiol 14:S199–S202

vonJako CR, Zuk Y, Zur O, Gilboa P (2013) A novel accurate minioptical tracking system for percutaneous needle placement. IEEE Trans Biomed Eng 60:2222–2225

Krücker J, Xu S, Glossop N, Viswanathan A, Borgert J, Schulz H, Wood BJ (2007) Electromagnetic tracking for thermal ablation and biopsy guidance: clinical evaluation of spatial accuracy. J VascIntervRadiol 18:1141–1150

B.J. Abdullah, C.H. Yeong, K. Goh, B. Yoong, G. Ho, A. Kulkarni. Early experience of a commercial available robot (Maxio) for CT-guided radiofrequency ablation of liver tumours. ECR 2014 Scientific Paper, 14-P-1001-ECR.

D.A. Valenti, T. Cabrera, L.N. Boucher, V. Demers, U. Shreter, C. von Jako. High technical success rate for liver needle placement with the CT-guide navigation system. JournalofVascularandInterventionalRadiology.Volume24,Issue4,Supplement,April 2013, Pages S163. SIR 2013 38th Annual Scientific Meeting, Abstract No. 382.

Sascha A. Müller, Lena Maier-Hein, AysunTekbas, Alexander Seitel, Stefanie Ramsauer, Boris Radeleff, Alfred M. Franz, Ralf Tetzlaff, ArianebMehrabi, Ivo Wolf, Hans-Ulrich Kauczor, Hans-Peter Meinzer, Bruno M. Schmied. Navigated Liver Biopsy UsingaNovelSoftTissueNavigationSystemversusCT-GuidedLiverBiopsyinaPorcine Model. A Prospective Randomized Trial. Academic Radiology. Volume 17, Issue 10, October 2010, Pages 1282-1287.


  • There are currently no refbacks.