Publications 2019

Brun H, Bugge RAB, Suther LKR, Birkeland S, Kumar R, Pelanis E, Elle OJ (2019)
Mixed reality holograms for heart surgery planning: first user experience in congenital heart disease
Eur Heart J Cardiovasc Imaging, 20 (8), 883-888
DOI 10.1093/ehjci/jey184, PubMed 30534951

Krogh MR, Halvorsen PS, Elle OJ, Bergsland J, Remme EW (2019)
Dynamic gravity compensation does not increase detection of myocardial ischemia in combined accelerometer and gyro sensor measurements
Sci Rep, 9 (1), 2671
DOI 10.1038/s41598-018-35630-x, PubMed 30804438

Luzon JA, Kumar RP, Stimec BV, Elle OJ, Bakka AO, Edwin B, Ignjatovic D (2019)
Semi-automated vs. manual 3D reconstruction of central mesenteric vascular models: the surgeon's verdict
Surg Endosc (in press)
DOI 10.1007/s00464-019-07275-y, PubMed 31745632

Miseikis J, Brijacak I, Yahyanejad S, Glette K, Elle OJ, Torresen J (2019)
Two-Stage Transfer Learning for Heterogeneous Robot Detection and 3D Joint Position Estimation in a 2D Camera Image Using CNN
IEEE INT CONF ROBOT, 8883-8889

Pelanis E, Kumar RP, Aghayan DL, Palomar R, Fretland ÅA, Brun H, Elle OJ, Edwin B (2019)
Use of mixed reality for improved spatial understanding of liver anatomy
Minim Invasive Ther Allied Technol
DOI 10.1080/13645706.2019.1616558, PubMed 31116053

Wang CC, Mohammed AK, Cheikh FA, Beghdadi A, Elle OJ (2019)
Multiscale deep desmoking for laparoscopic surgery
PROC SPIE, 10949, 109491Y

Publications 2018

Kumar RP, Barkhatov L, Edwin B, Albregtsen F, Elle OJ (2018)
Portal and Hepatic Vein Segmentation with Leak Restriction: A Pilot Study
IFMBE PROC, 65, 823-826

Miscikis J, Brijacak I, Yahyanejad S, Glette K, Elle OJ, Torresen J (2018)
Transfer Learning for Unseen Robot Detection and Joint Estimation on a Multi-Objective Convolutional Neural Network
2018 IEEE INTERNATIONAL CONFERENCE ON INTELLIGENCE AND SAFETY FOR ROBOTICS (ISR), 337-342

Miseikis J, Brijacak I, Yahyanejad S, Glette K, Elle OJ, Torresen J (2018)
Multi-Objective Convolutional Neural Networks for Robot Localisation and 3D Position Estimation in 2D Camera Images
2018 15TH INTERNATIONAL CONFERENCE ON UBIQUITOUS ROBOTS (UR), 597-603

Miseikis J, Knobelreiter P, Brijacak I, Yahyanejad S, Glette K, Elle OJ, Torresen J (2018)
Robot Localisation and 3D Position Estimation Using a Free-Moving Camera and Cascaded Convolutional Neural Networks
IEEE ASME INT C ADV, 181-187

Palomar R, Gomez-Luna J, Cheikh FA, Olivares-Bueno J, Elle OJ (2018)
High-Performance Computation of Bezier Surfaces on Parallel and Heterogeneous Platforms
Int. J. Parallel Program., 46 (6), 1035-1062

Pérez de Frutos J, Hofstad EF, Solberg OV, Tangen GA, Lindseth F, Langø T, Elle OJ, Mårvik R (2018)
Laboratory test of Single Landmark registration method for ultrasound-based navigation in laparoscopy using an open-source platform
Int J Comput Assist Radiol Surg, 13 (12), 1927-1936
DOI 10.1007/s11548-018-1830-7, PubMed 30074134

Sdiri B, Kaaniche M, Cheikh FA, Beghdadi A, Elle OJ (2018)
Efficient Enhancement of Stereo Endoscopic Images Based on Joint Wavelet Decomposition and Binocular Combination
IEEE Trans Med Imaging, 38 (1), 33-45
DOI 10.1109/TMI.2018.2853808, PubMed 29994612

Wang C, Alaya Cheikh F, Kaaniche M, Beghdadi A, Elle OJ (2018)
Variational based smoke removal in laparoscopic images
Biomed Eng Online, 17 (1), 139
DOI 10.1186/s12938-018-0590-5, PubMed 30340594

Wang CC, Cheikh FA, Kaaniche M, Elle OJ (2018)
Liver surface reconstruction for image guided surgery
PROC SPIE, 10576, UNSP 105762H

Publications 2017

Krogh MR, Nghiem GM, Halvorsen PS, Elle OJ, Grymyr OJ, Hoff L, Remme EW (2017)
Gravity Compensation Method for Combined Accelerometer and Gyro Sensors Used in Cardiac Motion Measurements
Ann Biomed Eng, 45 (5), 1292-1304
DOI 10.1007/s10439-017-1798-4, PubMed 28116541

Mathiassen K, Dall'Alba D, Muradore R, Fiorini P, Elle OJ (2017)
Robust Real-Time Needle Tracking in 2-D Ultrasound Images Using Statistical Filtering
IEEE Trans. Control Syst. Technol., 25 (3), 966-978

Palomar R, Cheikh FA, Edwin B, Fretland Å, Beghdadi A, Elle OJ (2017)
A novel method for planning liver resections using deformable Bézier surfaces and distance maps
Comput Methods Programs Biomed, 144, 135-145
DOI 10.1016/j.cmpb.2017.03.019, PubMed 28494998

Publications 2016

Mathiassen K, Fjellin JE, Glette K, Hol PK, Elle OJ (2016)
An Ultrasound Robotic System Using the Commercial Robot UR5
Front. Robot. AI, 3, UNSP 1

Mathiassen K, Glette K, Elle OJ (2016)
Visual Servoing of a Medical Ultrasound Probe for Needle Insertion
IEEE INT CONF ROBOT, 3426-3433

Miseikis J, Glette K, Elle OJ, Torresen J (2016)
Automatic Calibration of a Robot Manipulator and Multi 3D Camera System
IEEE/SICE I S SYS IN, 735-741

Palomar R, Cheikh FA, Edwin B, Beghdadhi A, Elle OJ (2016)
Surface reconstruction for planning and navigation of liver resections
Comput Med Imaging Graph, 53, 30-42
DOI 10.1016/j.compmedimag.2016.07.003, PubMed 27490316

Ševo I, Avramović A, Balasingham I, Elle OJ, Bergsland J, Aabakken L (2016)
Edge density based automatic detection of inflammation in colonoscopy videos
Comput Biol Med, 72, 138-50
DOI 10.1016/j.compbiomed.2016.03.017, PubMed 27043856

Publications 2015

Greisiger R, Shallop JK, Hol PK, Elle OJ, Jablonski GE (2015)
Cochlear implantees: Analysis of behavioral and objective measures for a clinical population of various age groups
Cochlear Implants Int, 16 Suppl 4, 1-19
DOI 10.1080/14670100.2015.1110372, PubMed 26642899

Kaiser M, Detert M, Rube MA, El-Tahir A, Elle OJ, Melzer A, Schmidt B, Rose GH (2015)
Resonant marker design and fabrication techniques for device visualization during interventional magnetic resonance imaging
Biomed Tech (Berl), 60 (2), 89-103
DOI 10.1515/bmt-2013-0097, PubMed 25460277

Kumar RP, Albregtsen F, Reimers M, Edwin B, Lango T, Elle OJ (2015)
Blood Vessel Segmentation and Centerline Tracking Using Local Structure Analysis
IFMBE PROC, 45, 122-+

Muradore R, Fiorini P, Akgun G, Barkana DE, Bonfe M, Borierol F, Caprara A, De Rossi G, Dodi R, Elle OJ, Ferraguti F, Gasperottil L, Gassert R, Mathiassen K, Handini D, Lambercy O, Lil L, Kruusmaal M, Manurung AO, Meruzzi G, Nguyen HQP, Freda N, Riolfo G, Ristolainen A, Sanna A et al. (2015)
Development of a Cognitive Robotic System for Simple Surgical Tasks
Int. J. Adv. Robot. Syst., 12, 37

Publications 2014

Bergsland J, Elle OJ, Fosse E (2014)
Barriers to medical device innovation
Med Devices (Auckl), 7, 205-9
DOI 10.2147/MDER.S43369, PubMed 24966699

Grymyr OJ, Remme EW, Espinoza A, Skulstad H, Elle OJ, Fosse E, Halvorsen PS (2014)
Assessment of 3D motion increases the applicability of accelerometers for monitoring left ventricular function
Interact Cardiovasc Thorac Surg, 20 (3), 329-37
DOI 10.1093/icvts/ivu404, PubMed 25472979

Kumar RP, Albregtsen F, Reimers M, Edwin B, Langø T, Elle OJ (2014)
Three-Dimensional Blood Vessel Segmentation and Centerline Extraction based on Two-Dimensional Cross-Section Analysis
Ann Biomed Eng, 43 (5), 1223-34
DOI 10.1007/s10439-014-1184-4, PubMed 25398332

Publications 2013

Eldirdiri A, Courivaud F, Palomar R, Hol PK, Elle OJ (2013)
Catheter tip tracking for MR-guided interventions using discrete Kalman filter and mean shift localization
Int J Comput Assist Radiol Surg, 9 (2), 313-22
DOI 10.1007/s11548-013-0933-4, PubMed 23974979

Kumar RP, Albregtsen F, Reimers M, Lango T, Edwin B, Elle OJ (2013)
3D multiscale vessel enhancement based centerline extraction of blood vessels
PROC SPIE, 8669, 86691X

Kumar RP, Rijkhorst EJ, Geier O, Barratt D, Elle OJ (2013)
STUDY ON LIVER BLOOD VESSEL MOVEMENT DURING BREATHING CYCLE
2013 COLOUR AND VISUAL COMPUTING SYMPOSIUM (CVCS)

Mathiassen K, Dall'Alba D, Muradore R, Fiorini P, Elle OJ (2013)
Real-Time Biopsy Needle Tip Estimation in 2D Ultrasound Images
IEEE INT CONF ROBOT, 4363-4369

Mathiassen K, Dall'Alba D, Muradore R, Fiorini P, Elle OJ (2013)
Real-time biopsy needle tip estimation in 2D ultrasound images
IEEE ICRA, 2013, 4363-4369
DOI 10.1109/ICRA.2013.6631195, PublikaID 206

Publications 2012

Fernandez-Gutierrez F, Barclay A, Martin T, Elle OJ, Houston G, Melzer A (2012)
Workflow for image-guided interventions: Characterisation and Validation. Towards the Integrated Imaging Operating Room of the future
Biomed. Eng.-Biomed. Tech., 57 1, 1048

Ho QPN, Kang HJ, Suh YS, Elle OJ (2012)
A Platform Stabilization Algorithm Based on Feedforward Visual-Inertial Servoing
Int. J. Precis. Eng. Manuf., 13 (4), 517-526

Naerum E, Elle OJ, Hannaford B (2012)
The Effect of Interaction Force Estimation on Performance in Bilateral Teleoperation
IEEE Trans Haptics, 5 (2), 160-71
DOI 10.1109/TOH.2011.51, PubMed 26964072

Remme EW, Hoff L, Halvorsen PS, Opdahl A, Fosse E, Elle OJ (2012)
Simulation model of cardiac three dimensional accelerometer measurements
Med Eng Phys, 34 (7), 990-8
DOI 10.1016/j.medengphy.2012.04.015, PubMed 22633656

Publications 2011

Bergsland J, Mujanovic E, Elle OJ, Mirtaheri P, Fosse E (2011)
Minimally invasive repair of the mitral valve: technological and clinical developments
Minim Invasive Ther Allied Technol, 20 (2), 72-7
DOI 10.3109/13645706.2011.554843, PubMed 21417839

Greisiger R, Tvete O, Shallop J, Elle OJ, Hol PK, Jablonski GE (2011)
Cochlear implant-evoked electrical auditory brainstem responses during surgery in patients with auditory neuropathy spectrum disorder
Cochlear Implants Int, 12 Suppl 1, S58-60
DOI 10.1179/146701011X13001035753137, PubMed 21756475

Publications 2010

Lamata P, Lamata F, Sojar V, Makowski P, Massoptier L, Casciaro S, Ali W, Stüdeli T, Declerck J, Elle OJ, Edwin B (2010)
Use of the Resection Map system as guidance during hepatectomy
Surg Endosc, 24 (9), 2327-37
DOI 10.1007/s00464-010-0915-3, PubMed 20177937

Publications 2009

Halvorsen PS, Remme EW, Espinoza A, Skulstad H, Lundblad R, Bergsland J, Hoff L, Imenes K, Edvardsen T, Elle OJ, Fosse E (2009)
Automatic real-time detection of myocardial ischemia by epicardial accelerometer
J Thorac Cardiovasc Surg, 139 (4), 1026-32
DOI 10.1016/j.jtcvs.2009.05.031, PubMed 19717169

Lowrie C, Desmulliez MPY, Hoff L, Elle OJ, Fosse E (2009)
MEMS Three-Axis Accelerometer: Design, Fabrication and Application of Measuring Heart Wall Motion
DTIP 2009: SYMPOSIUM ON DESIGN, TEST, INTEGRATION AND PACKAGING OF MEMS/MOEMS, 229-+

Lowrie C, Desmulliez MPY, Hoff L, Elle OJ, Fosse E (2009)
Fabrication of a MEMS accelerometer to detect heart bypass surgery complications
Sens. Rev., 29 (4), 319-325

Morvan T, Martinsen M, Reimers M, Samset E, Elle OJ (2009)
Collision detection and untangling for surgical robotic manipulators
Int J Med Robot, 5 (3), 233-42
DOI 10.1002/rcs.247, PubMed 19367614

Remme EW, Hoff L, Halvorsen PS, Naerum E, Skulstad H, Fleischer LA, Elle OJ, Fosse E (2009)
Validation of cardiac accelerometer sensor measurements
Physiol Meas, 30 (12), 1429-44
DOI 10.1088/0967-3334/30/12/010, PubMed 19907074

Sette MM, Furtado H, Studeli T, Morita T, Elle OJ, Van Brussel H, Sloten JV (2009)
Physiological Parameters Based Control Scheme for Automatic Intravascular Balloon Inflation
IFMBE PROC, 25, 333-+

Publications 2008

Cornella J, Elle OJ, Ali W, Samset E (2008)
Intraoperative Navigation of an Optically Tracked Surgical Robot
LECT NOTES COMPUT SC, 5242, 587-594

Cornellà J, Elle OJ, Ali W, Samset E (2008)
Intraoperative navigation of an optically tracked surgical robot
Med Image Comput Comput Assist Interv, 11 (Pt 2), 587-94
DOI 10.1007/978-3-540-85990-1_70, PubMed 18982652

Cornella J, Elle OJ, Ali W, Samset E (2008)
Improving Cartesian Position Accuracy of a Telesurgical Robot
2008 IEEE INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS, VOLS 1-5, 1172-+

Fleischer LA, Halvorsen PS, Hoff L, Fosse E, Elle OJ (2008)
Epicardial Acceleration Signal Measured Using a Single Chip 3-axis Accelerometer
IFMBE PROC, 20, 221-+

Halvorsen PS, Espinoza A, Fleischer LA, Elle OJ, Hoff L, Lundblad R, Skulstad H, Edvardsen T, Ihlen H, Fosse E (2008)
Feasibility of a three-axis epicardial accelerometer in detecting myocardial ischemia in cardiac surgical patients
J Thorac Cardiovasc Surg, 136 (6), 1496-502
DOI 10.1016/j.jtcvs.2008.08.043, PubMed 19114197

Halvorsen PS, Fleischer LA, Espinoza A, Elle OJ, Hoff L, Skulstad H, Edvardsen T, Fosse E (2008)
Detection of myocardial ischaemia by epicardial accelerometers in the pig
Br J Anaesth, 102 (1), 29-37
DOI 10.1093/bja/aen331, PubMed 19022793

Lowrie C, Desmulliez MPY, Hoff L, Elle OJ, Fosse E (2008)
Design and fabrication of an implantable three-axis accelerometer for post-surgery monitoring of heart wall motion
ESTC 2008: 2ND ELECTRONICS SYSTEM-INTEGRATION TECHNOLOGY CONFERENCE, VOLS 1 AND 2, PROCEEDINGS, 435-+

Naerum E, Cornella J, Elle OJ (2008)
Wavelet networks for estimation of coupled friction in robotic manipulators
IEEE INT CONF ROBOT, 862-867

Naerum E, Cornella J, Elle OJ (2008)
Contact Force Estimation for Backdrivable Robotic Manipulators with Coupled Friction
2008 IEEE/RSJ INTERNATIONAL CONFERENCE ON ROBOTS AND INTELLIGENT SYSTEMS, VOLS 1-3, CONFERENCE PROCEEDINGS, 3021-3027

Publications 2007

Imenes K, Aasmundtveit K, Husa EM, Høgetveit JO, Halvorsen S, Elle OJ, Mirtaheri P, Fosse E, Hoff L (2007)
Assembly and packaging of a three-axis micro accelerometer used for detection of heart infarction
Biomed Microdevices, 9 (6), 951-7
DOI 10.1007/s10544-007-9082-2, PubMed 17492383

Risholm P, Narum E, Elle OJ, Samset E (2007)
An inexpensive and portable system for improving EM tracking accuracy
Int. J. Comput. Assist. Radiol. Surg., 2 1, S181-S182

Publications 2006

Halvorsen FH, Elle OJ, Dalinin VV, Mørk BE, Sørhus V, Røtnes JS, Fosse E (2006)
Virtual reality simulator training equals mechanical robotic training in improving robot-assisted basic suturing skills
Surg Endosc, 20 (10), 1565-9
DOI 10.1007/s00464-004-9270-6, PubMed 16902750

Naerum E, Elle OJ, Egeland O (2006)
Heartbeat tracking using the AESOP 3000DS Endoscope Positioner
Int. J. Comput. Assist. Radiol. Surg., 1 1, 267-269

Risholm P, Sauter A, Bosse G, Elle OJ, Samset E (2006)
Registration free MRI-US fusion for identification of infraclavicular parts of plexus brachialis
Int. J. Comput. Assist. Radiol. Surg., 1 1, 57-59

Publications 2005

Elle OJ, Halvorsen S, Gulbrandsen MG, Aurdal L, Bakken A, Samset E, Dugstad H, Fosse E (2005)
Early recognition of regional cardiac ischemia using a 3-axis accelerometer sensor
Physiol Meas, 26 (4), 429-40
DOI 10.1088/0967-3334/26/4/009, PubMed 15886438

Halvorsen FH, Elle OJ, Fosse E (2005)
Simulators in surgery
Minim Invasive Ther Allied Technol, 14 (4), 214-23
DOI 10.1080/13645700500243869, PubMed 16754167

Publications 2004

Hoff L, Elle OJ, Grimnes MJ, Halvorsen S, Alker HJ, Fosse E (2004)
Measurements of heart motion using accelerometers
Conf Proc IEEE Eng Med Biol Soc, 3, 2049-51
DOI 10.1109/IEMBS.2004.1403602, PubMed 17272122

Publications 2002

Røtnes JS, Kaasa J, Westgaard G, Eriksen EM, Hvidsten PO, Strøm K, Sørhus V, Halbwachs Y, Haug E, Grimnes M, Fontenelle H, Ekeberg T, Thomassen JB, Elle OJ, Fosse E (2002)
A tutorial platform suitable for surgical simulator training (SimMentor)
Stud Health Technol Inform, 85, 419-25
PubMed 15458125

Samset E, Talsma A, Kintel M, Elle OJ, Aurdal L, Hirschberg H, Fosse E (2002)
A virtual environment for surgical image guidance in intraoperative MRI
Comput Aided Surg, 7 (4), 187-96
DOI 10.1002/igs.10044, PubMed 12454891

Publications 2001

Røtnes JS, Kaasa J, Westgaard G, Eriksen EM, Hvidsten PØ, Strøm K, Sørhus V, Halbwachs Y, Elle OJ, Fosse E (2001)
Digital trainer developed for robotic assisted cardiac surgery
Stud Health Technol Inform, 81, 424-30
PubMed 11317783

Publications 2000

Fosse E, Elle OJ, Samset E, Johansen M, Røtnes JS, Tønnessen TI, Edwin B (2000)
[Image guided and robotic treatment--the advance of cybernetics in clinical medicine]
Tidsskr Nor Laegeforen, 120 (1), 65-9
PubMed 10815485