Publications by Per Steinar Halvorsen

80 publications found

Publications 2024

1. Antonsen LP, Espinoza A, Halvorsen PS, Schalit I, Bergan H, Lilja D, Landsverk SA (2024)
   The impact of hypovolemia and PEEP on recirculation in venovenous ECMO: an experimental porcine model
   Intensive Care Med Exp, 12 (1), 51
   DOI 10.1186/s40635-024-00636-5, PubMed 38822111

Publications 2023

1. Lilja D, Schalit I, Espinoza A, Fiane AE, Dahle G, Littorin-Sandbu H, Pettersen FJ, Russell KE, Thiara APS, Elle OJ, Halvorsen PS (2023)
   Detection of inflow obstruction in left ventricular assist devices by accelerometer: A porcine model study
   J Heart Lung Transplant, 42 (8), 1005-1014
   DOI 10.1016/j.healun.2023.03.017, PubMed 37023840
2. Lilja D, Schalit I, Espinoza A, Hoel TN, Larsen G, Pettersen FJ, Halvorsen PS (2023)
   Extracorporeal driveline vibrations to detect left ventricular assist device thrombosis - A porcine model study
   J Heart Lung Transplant, 43 (1), 111-119
   DOI 10.1016/j.healun.2023.08.022, PubMed 37673384

Publications 2022

1. Lilja D, Schalit I, Espinoza A, Pettersen FJ, Elle OJ, Halvorsen PS (2022)
   Detection of inflow obstruction in left ventricular assist devices by accelerometer: An in vitro study
   Med Eng Phys, 110, 103917
   DOI 10.1016/j.medengphy.2022.103917, PubMed 36564132
2. Schalit I, Espinoza A, Pettersen FJ, Skulstad H, Fosse E, Fiane AE, Halvorsen PS (2022)
   Improved Detection Of Thromboembolic Complications In Left Ventricular Assist Device By Novel Accelerometer-Based Analysis
   ASAIO J, 68 (9), 1117-1125
   DOI 10.1097/MAT.0000000000001654, PubMed 36066353
3. Wajdan A, Jahren TS, Villegas-Martinez M, Khan FH, Halvorsen PS, Odland HH, Elle OJ, Solberg AHS, Remme EW (2022)
   Automatic Detection of Aortic Valve Events Using Deep Neural Networks on Cardiac Signals From Epicardially Placed Accelerometer
   IEEE J Biomed Health Inform, 26 (9), 4450-4461
   DOI 10.1109/JBHI.2022.3181148, PubMed 35679388
4. Wisløff-Aase K, Skulstad H, Beitnes JO, Lundblad R, Halvorsen PS, Fiane A, Espinoza A (2022)
   Left Ventricular Function Changes Induced by Moderate Hypothermia Are Rapidly Reversed After Rewarming-A Clinical Study
   Crit Care Med, 50 (1), e52-e60
   DOI 10.1097/CCM.0000000000005170, PubMed 34259452
5. Wisløff-Aase K, Skulstad H, Haugaa K, Lingaas PS, Beitnes JO, Halvorsen PS, Espinoza A (2022)
   Myocardial electrophysiological and mechanical changes caused by moderate hypothermia-A clinical study
   Physiol Rep, 10 (8), e15259
   DOI 10.14814/phy2.15259, PubMed 35439365

Publications 2021

1. Krogh MR, Halvorsen PS, Grymyr OHN, Bergsland J, Elle OJ, Fosse E, Remme EW (2021)
   Continuous Estimation of Acute Changes in Preload Using Epicardially Attached Accelerometers
   IEEE Trans Biomed Eng, 68 (7), 2067-2075
   DOI 10.1109/TBME.2020.3020358, PubMed 32866091
2. Storm BS, Halvorsen PS, Skulstad H, Dybwik K, Schjalm C, Christiansen D, Wisløff-Aase K, Fosse E, Braaten T, Nielsen EW, Mollnes TE (2021)
   Open chest and pericardium facilitate transpulmonary passage of venous air emboli
   Acta Anaesthesiol Scand, 65 (5), 648-655
   DOI 10.1111/aas.13796, PubMed 33595102

Publications 2020

1. El-Ganainy NO, Balasingham I, Halvorsen PS, Rosseland LA (2020)
   A New Real Time Clinical Decision Support System Using Machine Learning for Critical Care Units
   IEEE Access, 8, 185676-185687
   DOI 10.1109/ACCESS.2020.3030031
2. Espinoza A, Kerans V, Bugge JF, Skulstad H, Halvorsen PS (2020)
   Left Ventricular Function During Epinephrine Stimulation and Hypothermia: Effects at Spontaneous and Paced Heart Rates in a Porcine Model
   Ther Hypothermia Temp Manag, 11 (1), 35-44
   DOI 10.1089/ther.2019.0035, PubMed 31916922
3. Saevik M, Beitnes JO, Aaberge L, Halvorsen PS (2020)
   Safety and feasibility of dobutamine stress echocardiography in symptomatic high gradient aortic stenosis patients scheduled for transcatheter aortic valve implantation
   J Clin Ultrasound, 49 (1), 38-48
   DOI 10.1002/jcu.22915, PubMed 32914454
4. Schalit I, Espinoza A, Pettersen FJ, Snartland S, Ringdal ML, Hoel TN, Skulstad H, Fosse E, Fiane AE, Halvorsen PS (2020)
   Detection of Thromboembolic Events and Pump Thrombosis in HeartWare HVAD Using Accelerometer in a Porcine Model
   ASAIO J, 66 (1), 38-48
   DOI 10.1097/MAT.0000000000000954, PubMed 30688692
5. Wajdan A, Krogh MR, Villegas-Martinez M, Halvorsen PS, Elle OJ, Remme EW (2020)
   Automatic detection of valve events by epicardial accelerometer allows estimation of the left ventricular pressure trace and pressure-displacement loop area
   Sci Rep, 10 (1), 20088
   DOI 10.1038/s41598-020-76637-7, PubMed 33208784
6. Wisløff-Aase K, Kerans V, Haugaa K, Halvorsen PS, Skulstad H, Espinoza A (2020)
   Changes in left ventricular electromechanical relations during targeted hypothermia
   Intensive Care Med Exp, 8 (1), 76
   DOI 10.1186/s40635-020-00363-7, PubMed 33315166

Publications 2019

1. Albatat M, Bergsland J, Arevalo H, Odland HH, Bose P, Halvorsen PS, Balasingham I (2019)
   Technological and Clinical Challenges in Lead Placement for Cardiac Rhythm Management Devices
   Ann Biomed Eng, 48 (1), 26-46
   DOI 10.1007/s10439-019-02376-0, PubMed 31576502
2. Carling U, Barkhatov L, Reims HM, Storås T, Courivaud F, Kazaryan AM, Halvorsen PS, Dorenberg E, Edwin B, Hol PK (2019)
   Can we ablate liver lesions close to large portal and hepatic veins with MR-guided HIFU? An experimental study in a porcine model
   Eur Radiol, 29 (9), 5013-5021
   DOI 10.1007/s00330-018-5996-8, PubMed 30737565
3. Dahle G, Helle-Valle T, Beitnes JO, Espinoza A, Halvorsen PS, Rein KA (2019)
   Single-centre first experience with transapical transcatheter mitral valve replacement with an apical tether: factors influencing screening outcomes
   Interact Cardiovasc Thorac Surg, 28 (5), 695-703
   DOI 10.1093/icvts/ivy343, PubMed 30602024
4. El-Ganainy NO, Balasingham I, Halvorsen PS, Rosseland LA (2019)
   On the Performance of Hierarchical Temporal Memory Predictions of Medical Streams in Real Time
   INT SYM MED INFORM, 157-162
5. Karlsen H, Bergan HA, Halvorsen PS, Sunde K, Qvigstad E, Andersen GØ, Bugge JF, Olasveengen TM (2019)
   Esmolol for cardioprotection during resuscitation with adrenaline in an ischaemic porcine cardiac arrest model
   Intensive Care Med Exp, 7 (1), 65
   DOI 10.1186/s40635-019-0279-5, PubMed 31802327
6. 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
7. Lu PF, Veletic M, Laasmaa M, Vendelin M, Louch WE, Halvorsen PS, Bergsland J, Balasingham I (2019)
   Multi-nodal nano-actuator pacemaker for energy-efficient stimulation of cardiomyocytes
   Nano Commun.Netw., 22, 100270
   DOI 10.1016/j.nancom.2019.100270
8. Pischke SE, Hestenes S, Johansen HT, Fure H, Bugge JF, Espinoza A, Skulstad H, Edvardsen T, Fosse E, Mollnes TE, Halvorsen PS, Nielsen EW (2019)
   Sepsis causes right ventricular myocardial inflammation independent of pulmonary hypertension in a porcine sepsis model
   PLoS One, 14 (6), e0218624
   DOI 10.1371/journal.pone.0218624, PubMed 31247004
9. Wajdan A, Krogh MR, Villegas-Martinez M, Halvorsen PS, Grymyr OJ, Elle OJ, Remme EW (2019)
   Monitoring cardiac function by accelerometer - detecting start systole from the acceleration signal makes additional ECG recordings for R-peak detection redundant
   Annu Int Conf IEEE Eng Med Biol Soc, 2019, 4922-4925
   DOI 10.1109/EMBC.2019.8856417, PubMed 31946964
10. Wajdan A, Krogh MR, Villegas-Martinez M, Halvorsen PS, Grymyr OJ, Elle OJ, Remme EW (2019)
    Monitoring cardiac function by accelerometer - detecting start systole from the acceleration signal makes additional ECG recordings for R-peak detection redundant
    IEEE ENG MED BIO, 4922-4925

Publications 2018

1. Bergan HA, Halvorsen PS, Espinoza A, Kerans V, Skulstad H, Fosse E, Bugge JF (2018)
   Left Ventricle Function During Therapeutic Hypothermia with Beta₁-Adrenergic Receptor Blockade
   Ther Hypothermia Temp Manag, 8 (3), 156-164
   DOI 10.1089/ther.2017.0051, PubMed 29394143
2. Bugge JF, Kerans V, Nyrerød HC, Halvorsen PS (2018)
   Haemodynamic evaluation and optimisation of brain-dead donors with oesophageal Doppler during organ harvesting: A feasibility study
   Eur J Anaesthesiol, 35 (11), 893-895
   DOI 10.1097/EJA.0000000000000876, PubMed 30278032
3. Hyler S, Espinoza A, Skulstad H, Fosse E, Steinar Halvorsen P (2018)
   Corrigendum to 'Left ventricular function can be continuously monitored with an epicardially attached accelerometer sensor' [Eur J Cardiothorac Surg 2014;46:313-20]
   Eur J Cardiothorac Surg, 54 (5), 968
   DOI 10.1093/ejcts/ezy340, PubMed 30295773
4. Schalit I, Espinoza A, Pettersen FJ, Thiara APS, Karlsen H, Sørensen G, Fosse E, Fiane AE, Halvorsen PS (2018)
   Accelerometer Detects Pump Thrombosis and Thromboembolic Events in an In vitro HVAD Circuit
   ASAIO J, 64 (5), 601-609
   DOI 10.1097/MAT.0000000000000699, PubMed 29088023

Publications 2017

1. Fiane KKH, Dahle G, Bendz B, Halvorsen PS, Abdelnoor M, Mollnes TE, Fosse E (2017)
   Reduced inflammatory response by transcatheter, as compared to surgical aortic valve replacement
   Scand Cardiovasc J, 52 (1), 43-50
   DOI 10.1080/14017431.2017.1416157, PubMed 29233022
2. Grymyr OH, Beitnes JO, Eidet J, Tølløfsrud S, Fiane A, Skulstad H, Fosse E, Halvorsen PS (2017)
   Detection of intraoperative myocardial dysfunction by accelerometer during aortic valve replacement
   Interact Cardiovasc Thorac Surg, 24 (2), 188-195
   DOI 10.1093/icvts/ivw326, PubMed 28364479
3. Høiseth G, Gottås A, Berg T, Arnestad M, Halvorsen PS, Bachs LC (2017)
   Urinary Kinetics of Heroin Metabolites in Pigs Shortly After Intake
   J Anal Toxicol, 41 (5), 451-454
   DOI 10.1093/jat/bkx017, PubMed 28335030
4. 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

Publications 2016

1. Bergan HA, Halvorsen PS, Skulstad H, Fosse E, Bugge JF (2016)
   Does therapeutic hypothermia during extracorporeal cardiopulmonary resuscitation preserve cardiac function?
   J Transl Med, 14 (1), 345
   DOI 10.1186/s12967-016-1099-y, PubMed 27998282
2. Bugge JF, Espinoza A, Halvorsen PS (2016)
   Hypothermia Is Not an Inotropic Drug
   Crit Care Med, 44 (12), e1258
   DOI 10.1097/CCM.0000000000002048, PubMed 27858830
3. Eidet J, Dahle G, Bugge JF, Bendz B, Rein KA, Aaberge L, Offstad JT, Fosse E, Aakhus S, Halvorsen PS (2016)
   Long-term outcomes after transcatheter aortic valve implantation: the impact of intraoperative tissue Doppler echocardiography
   Interact Cardiovasc Thorac Surg, 23 (3), 403-9
   DOI 10.1093/icvts/ivw159, PubMed 27241050
4. Gottås A, Arnestad M, Halvorsen PS, Bachs LC, Høiseth G (2016)
   Pharmacokinetics of heroin and its metabolites in vitreous humor and blood in a living pig model
   Forensic Toxicol, 34 (2), 277-285
   DOI 10.1007/s11419-016-0315-z, PubMed 27660664
5. Secerbegovic A, Bergsland J, Halvorsen PS, Suljanovic N, Mujcic A, Balasingham I (2016)
   BLOOD PRESSURE ESTIMATION USING VIDEO PLETHYSMOGRAPHY
   I S BIOMED IMAGING, 461-464
   DOI 10.1109/ISBI.2016.7493307
6. Tjulkins F, Nguyen ATT, Andreassen E, Hoff L, Grymyr OJ, Halvorsen PS, Imenes K (2016)
   An Implantable Accelerometer-Based Heart-Monitoring Device With Improved Positional Stability
   J. Med. Devices, 10 (4), 045002
   DOI 10.1115/1.4034574

Publications 2015

1. Bergan HA, Halvorsen PS, Skulstad H, Edvardsen T, Fosse E, Bugge JF (2015)
   Successful ECMO-cardiopulmonary resuscitation with the associated post-arrest cardiac dysfunction as demonstrated by MRI
   Intensive Care Med Exp, 3 (1), 61
   DOI 10.1186/s40635-015-0061-2, PubMed 26335546
2. Eidet J, Dahle G, Bugge JF, Bendz B, Rein KA, Fosse E, Aakhus S, Halvorsen PS (2015)
   Transcatheter aortic valve implantation and intraoperative left ventricular function: a myocardial tissue Doppler imaging study
   J Cardiothorac Vasc Anesth, 29 (1), 115-20
   DOI 10.1053/j.jvca.2014.10.016, PubMed 25620143
3. Eidet J, Dahle G, Bugge JF, Bendz B, Rein KA, Aaberge L, Offstad JT, Fosse E, Aakhus S, Halvorsen PS (2015)
   Intraoperative improvement in left ventricular peak systolic velocity predicts better short-term outcome after transcatheter aortic valve implantation
   Interact Cardiovasc Thorac Surg, 22 (1), 5-12
   DOI 10.1093/icvts/ivv277, PubMed 26467639
4. Espinoza A, Neumann K, Halvorsen PS, Sundset A, Kongerud J, Fosse E (2015)
   Critical airway obstruction: challenges in airway management and ventilation during therapeutic bronchoscopy
   J Bronchology Interv Pulmonol, 22 (1), 41-7
   DOI 10.1097/LBR.0000000000000127, PubMed 25590482
5. Floor PA, Chávez-Santiago R, Brovoll S, Aardal Ø, Bergsland J, Grymyr OJ, Halvorsen PS, Palomar R, Plettemeier D, Hamran SE, Ramstad TA, Balasingham I (2015)
   In-Body to On-Body Ultrawideband Propagation Model Derived From Measurements in Living Animals
   IEEE J Biomed Health Inform, 19 (3), 938-48
   DOI 10.1109/JBHI.2015.2417805, PubMed 25861089
6. Grymyr OJ, Nguyen AT, Tjulkins F, Espinoza A, Remme EW, Skulstad H, Fosse E, Imenes K, Halvorsen PS (2015)
   Continuous monitoring of cardiac function by 3-dimensional accelerometers in a closed-chest pig model
   Interact Cardiovasc Thorac Surg, 21 (5), 573-82
   DOI 10.1093/icvts/ivv191, PubMed 26254463
7. Hyler S, Pischke SE, Halvorsen PS, Espinoza A, Bergsland J, Tønnessen TI, Fosse E, Skulstad H (2015)
   Continuous monitoring of regional function by a miniaturized ultrasound transducer allows early quantification of low-grade myocardial ischemia
   J Am Soc Echocardiogr, 28 (4), 486-94
   DOI 10.1016/j.echo.2014.12.014, PubMed 25636368
8. Kerans V, Espinoza A, Skulstad H, Halvorsen PS, Edvardsen T, Bugge JF (2015)
   Systolic left ventricular function is preserved during therapeutic hypothermia, also during increases in heart rate with impaired diastolic filling
   Intensive Care Med Exp, 3 (1), 41
   DOI 10.1186/s40635-015-0041-6, PubMed 26215808

Publications 2014

1. Courivaud F, Kazaryan AM, Lund A, Orszagh VC, Svindland A, Marangos IP, Halvorsen PS, Jebsen P, Fosse E, Hol PK, Edwin B (2014)
   Thermal fixation of swine liver tissue after magnetic resonance-guided high-intensity focused ultrasound ablation
   Ultrasound Med Biol, 40 (7), 1564-77
   DOI 10.1016/j.ultrasmedbio.2014.02.007, PubMed 24768489
2. 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
3. Hestenes SM, Halvorsen PS, Skulstad H, Remme EW, Espinoza A, Hyler S, Bugge JF, Fosse E, Nielsen EW, Edvardsen T (2014)
   Advantages of strain echocardiography in assessment of myocardial function in severe sepsis: an experimental study
   Crit Care Med, 42 (6), e432-40
   DOI 10.1097/CCM.0000000000000310, PubMed 24633187
4. Hyler S, Espinoza A, Skulstad H, Fosse E, Halvorsen PS (2014)
   Left ventricular function can be continuously monitored with an epicardially attached accelerometer sensor
   Eur J Cardiothorac Surg, 46 (2), 313-20
   DOI 10.1093/ejcts/ezt653, PubMed 24482390
5. Nguyen ATT, Tjulkins F, Aasmundtveit KE, Hoivik N, Hoff L, Grymyr OJ, Halvorsen PS, Imenes K (2014)
   Packaging of a Multifunctional Implantable Heart Monitoring Device
   2014 SYMPOSIUM ON DESIGN, TEST, INTEGRATION AND PACKAGING OF MEMS/MOEMS (DTIP), 322-327
6. Pischke SE, Hyler S, Tronstad C, Bergsland J, Fosse E, Halvorsen PS, Skulstad H, Tønnessen TI (2014)
   Myocardial tissue CO2 tension detects coronary blood flow reduction after coronary artery bypass in real-time†
   Br J Anaesth, 114 (3), 414-22
   DOI 10.1093/bja/aeu381, PubMed 25392231
7. Tjulkins F, Nguyen AT, Andreassen E, Aasmundtveit K, Hoivik N, Hoff L, Halvorsen PS, Grymyr OJ, Imenes K (2014)
   Fabrication and assembly of MEMS accelerometer-based heart monitoring device with simplified, one step placement
   J Med Eng Technol, 39 (1), 69-74
   DOI 10.3109/03091902.2014.981307, PubMed 25429874
8. Tjulkins F, Nguyen ATT, Andreassen E, Hoivik N, Aasmundtveit K, Hoff L, Grymyr OJ, Halvorsen PS, Imenes K (2014)
   MEMS-Based Implantable Heart Monitoring System with Integrated Pacing Function
   ELEC COMP C, 139-144

Publications 2013

1. Espinoza A, Kerans V, Opdahl A, Skulstad H, Halvorsen PS, Bugge JF, Fosse E, Edvardsen T (2013)
   Effects of therapeutic hypothermia on left ventricular function assessed by ultrasound imaging
   J Am Soc Echocardiogr, 26 (11), 1353-63
   DOI 10.1016/j.echo.2013.06.021, PubMed 23891124

Publications 2012

1. Pischke SE, Tronstad C, Holhjem L, Halvorsen PS, Tønnessen TI (2012)
   Perioperative detection of myocardial ischaemia/reperfusion with a novel tissue CO2 monitoring technology
   Eur J Cardiothorac Surg, 42 (1), 157-63
   DOI 10.1093/ejcts/ezr278, PubMed 22290904
2. 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

1. Awan ZA, Häggblad E, Wester T, Kvernebo MS, Halvorsen PS, Kvernebo K (2011)
   Diffuse reflectance spectroscopy: Systemic and microvascular oxygen saturation is linearly correlated and hypoxia leads to increased spatial heterogeneity of microvascular saturation
   Microvasc Res, 81 (3), 245-51
   DOI 10.1016/j.mvr.2011.02.004, PubMed 21376735
2. Johansson ML, Thomsen P, Hultén L, Halvorsen PS, Fosse E, Edwin B (2011)
   Integration between a percutaneous implant and the porcine small bowel
   J Biomed Mater Res B Appl Biomater, 98 (1), 101-9
   DOI 10.1002/jbm.b.31838, PubMed 21563306

Publications 2010

1. Espinoza A, Halvorsen PS, Skulstad H, Lundblad R, Bugge JF, Hoff L, Fosse E, Edvardsen T (2010)
   Automated detection of myocardial ischaemia by epicardial miniature ultrasound transducers--a novel tool for patient monitoring during cardiac surgery
   Eur J Cardiothorac Surg, 39 (1), 53-9
   DOI 10.1016/j.ejcts.2010.03.067, PubMed 20627751
2. Wester T, Häggblad E, Awan ZA, Barratt-Due A, Kvernebo M, Halvorsen PS, Mollnes TE, Kvernebo K (2010)
   Assessments of skin and tongue microcirculation reveals major changes in porcine sepsis
   Clin Physiol Funct Imaging, 31 (2), 151-8
   DOI 10.1111/j.1475-097X.2010.00994.x, PubMed 21087397

Publications 2009

1. Bergsland J, Lingaas PS, Skulstad H, Hol PK, Halvorsen PS, Andersen R, Småstuen M, Lundblad R, Svennevig J, Andersen K, Fosse E (2009)
   Intracoronary shunt prevents ischemia in off-pump coronary artery bypass surgery
   Ann Thorac Surg, 87 (1), 54-60
   DOI 10.1016/j.athoracsur.2008.08.032, PubMed 19101268
2. Espinoza A, Halvorsen PS, Hoff L, Skulstad H, Fosse E, Ihlen H, Edvardsen T (2009)
   Detecting myocardial ischaemia using miniature ultrasonic transducers--a feasibility study in a porcine model
   Eur J Cardiothorac Surg, 37 (1), 119-26
   DOI 10.1016/j.ejcts.2009.05.013, PubMed 19581103
3. 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
4. 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

Publications 2008

1. 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-+
2. 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
3. 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

Publications 2007

1. Frich L, Halvorsen PS, Skulstad H, Damås JK, Gladhaug IP (2007)
   Microbubbles in the pulmonary artery generated during experimental hepatic radiofrequency ablation is correlated with increased pulmonary arterial pressure
   J Vasc Interv Radiol, 18 (3), 437-42
   DOI 10.1016/j.jvir.2006.12.010, PubMed 17377191
2. Halvorsen PS, Sokolov A, Cvancarova M, Hol PK, Lundblad R, Tønnessen TI (2007)
   Continuous cardiac output during off-pump coronary artery bypass surgery: pulse-contour analyses vs pulmonary artery thermodilution
   Br J Anaesth, 99 (4), 484-92
   DOI 10.1093/bja/aem199, PubMed 17650518
3. Hol PK, Andersen K, Skulstad H, Halvorsen PS, Lingaas PS, Andersen R, Bergsland J, Fosse E (2007)
   Epicardial ultrasonography: a potential method for intraoperative quality assessment of coronary bypass anastomoses?
   Ann Thorac Surg, 84 (3), 801-7
   DOI 10.1016/j.athoracsur.2007.04.025, PubMed 17720379
4. 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

Publications 2006

1. Halvorsen PS, Espinoza A, Lundblad R, Cvancarova M, Hol PK, Fosse E, Tønnessen TI (2006)
   Agreement between PiCCO pulse-contour analysis, pulmonal artery thermodilution and transthoracic thermodilution during off-pump coronary artery by-pass surgery
   Acta Anaesthesiol Scand, 50 (9), 1050-7
   DOI 10.1111/j.1399-6576.2006.01118.x, PubMed 16987335

Publications 2005

1. 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
2. Mathisen L, Andersen MH, Hol PK, Tennøe B, Lund C, Russell D, Lundblad R, Halvorsen S, Wahl AK, Hanestad BR, Fosse E (2005)
   Preoperative cerebral ischemic lesions predict physical health status after on-pump coronary artery bypass surgery
   J Thorac Cardiovasc Surg, 130 (6), 1691-7
   DOI 10.1016/j.jtcvs.2005.08.008, PubMed 16308017
3. Skjelland M, Bergsland J, Lundblad R, Lingaas PS, Rein KA, Halvorsen S, Svennevig JL, Fosse E, Brucher R, Russell D (2005)
   Cerebral microembolization during off-pump coronary artery bypass surgery with the Symmetry aortic connector device
   J Thorac Cardiovasc Surg, 130 (6), 1581-5
   DOI 10.1016/j.jtcvs.2005.08.015, PubMed 16308002

Publications 2004

1. Bergsland J, Hol PK, Lingås PS, Lundblad R, Rein KA, Andersen R, Mørk BE, Halvorsen S, Mujanovic E, Kabil E, Svennevig JL, Fosse E (2004)
   Intraoperative and intermediate-term angiographic results of coronary artery bypass surgery with Symmetry proximal anastomotic device
   J Thorac Cardiovasc Surg, 128 (5), 718-23
   DOI 10.1016/j.jtcvs.2004.07.001, PubMed 15514599

Publications 1990

1. Iversen PO, Grønseth SA, Høva N, Halvorsen PS, Nilsen T, Skrede S (1990)
   [Occupational health care, coordination with primary health care]
   Tidsskr Nor Laegeforen, 110 (8), 991-2
   PubMed 2321236