Knut Matre's picture
Knut
Matre
Professor
Visit Address: 
Haukeland universitetssykehus, Laboratoriebygget
5021 Bergen
Postal Address: 
Postboks 7804
5021 Bergen
Phone: 
+47 55 97 29 86
+47 416 57 024
Download vCard

Medical ultrasound

Cardiac mechanics

Acoustic phantoms

Teaching ultrasound methods and applications for students:

Medicine

Physics

Postgraduate courses

Books
  • Haslene-Hox, Hanne; Silden, Elisabeth; Mujic, Maja; Matre, Knut; McCormack, Emmet Martin. 2011. 2011 Joint National Ph.D. Conference in Medical Imaging and MedViz Conference. 132 pages. ISBN: 978-82-993786-6-6.
  • Ødegaard, Svein; Gilja, Odd Helge; Matre, Knut. 2009. Innføring i abdominal ultrasonografi. Fagbokforlaget. 160 pages. ISBN: 978-82-450-0727-5.
  • Ødegaard, Svein; Gilja, Odd Helge; Matre, Knut. 2009. Innføring i abdominal ultrasonografi. Fagbokforlaget. 160 pages. ISBN: 978-82-450-0727-5.
Journal articles
  • Hjertaas, Johannes Just; Fosså, Henrik; Dybdahl, Grete Lunestad; Grüner, Renate; Lunde, Per; Matre, Knut. 2013. Accuracy of real-time single- and multi-beat 3-D speckle tracking echocardiography in vitro. Ultrasound in Medicine and Biology. 39: 1006-1014. doi: 10.1016/j.ultrasmedbio.2013.01.010
  • Kohl, Thomas; Schurg, R.; Maxeiner, H.; Tchatcheva, K.; Degenhardt, J.; Stressig, R.; Axt-Fliedner, R.; Gembruch, U.; Bebbington, M.; Victoria, T.; Danzer, E.; Molden-Hauer, J.; Khalek, N.; Johnson, M.P.; Hedrick, H.; Adzick, N.; Collins, S.L.; Stevenson, G.N.; Welsh, A.W.; Noble, J.A.; Impey, L.W.; Sande, Ragnar; Matre, Knut; Kiserud, Torvid; Eide, Geir Egil. 2013. 22nd World Congress on Ultrasound in Obstetrics and Gynecology, 9-13 September 2012, Copenhagen, Denmark: presentations and awards. Ultrasound in Obstetrics and Gynecology. 41: 114-120. doi: 10.1002/uog.12355
  • Matre, Knut; Lønnebakken, Mai Tone. 2013. Doppler av kar. Indremedisineren. 3. 14-17.
  • Moen, Christian Arvei; Salminen, Pirjo-Riitta; Dahle, Geir Olav; Hjertaas, Johannes Just; Grong, Ketil; Matre, Knut. 2013. Is strain by Speckle Tracking Echocardiography dependent on user controlled spatial and temporal smoothing? An experimental porcine study. Cardiovascular Ultrasound. 11:32. 14 pages. doi: 10.1186/1476-7120-11-32
  • Moen, Christian Arvei; Salminen, Pirjo-Riitta; Dahle, Geir Olav; Hjertaas, Johannes Just; Grong, Ketil; Matre, Knut. 2013. Multi-layer radial systolic strain vs. one-layer strain for confirming reperfusion from a significant non-occlusive coronary stenosis. European Heart Journal-Cardiovascular Imaging. 14: 24-37. doi: 10.1093/ehjci/jes082
  • Sande, Ragnar; Matre, Knut; Eide, Geir Egil; Kiserud, Torvid. 2013. The effects of reducing the thermal index for bone from 1.0 to 0.5 and 0.1 on common obstetric pulsed wave Doppler measurements in the second half of pregnancy. Acta Obstetricia et Gynecologica Scandinavica. 92: 790-796. doi: 10.1111/aogs.12114
  • Sande, Ragnar; Matre, Knut; Eide, Geir Egil; Kiserud, Torvid. 2013. The effect of ultrasound output level on obstetric biometric measurements. Ultrasound in Medicine and Biology. 39: 37-43. doi: 10.1016/j.ultrasmedbio.2012.08.011
  • Ahmed, Aymen B; Matre, Knut; Hausken, Trygve; Gregersen, Hans; Gilja, Odd Helge. 2012. Rome III subgroups of functional dyspepsia exhibit different characteristics of antral contractions measured by strain rate imaging. Ultraschall in der Medizin. 33: 233-240. doi: 10.1055/s-0032-1313073
  • Sande, Ragnar; Matre, Knut; Eide, Geir Egil; Kiserud, Torvid. 2012. The effect of ultrasound power level on obstetric biometric measurements. Acta Obstetricia et Gynecologica Scandinavica. 91: 124-124.
  • Sande, Ragnar; Matre, Knut; Eide, Geir Egil; Kiserud, Torvid. 2012. Ultrasound safety in early pregnancy: reduced energy setting does not compromise obstetric Doppler measurements. Ultrasound in Obstetrics and Gynecology. 39: 438-443. doi: 10.1002/uog.10148
  • Cramariuc, Dana; Hjertaas, Johannes Just; Segadal, Leidulf; Davidsen, Einar Skulstad; Matre, Knut; Gerdts, Eva. 2011. Impact of aortic valve stenosis and hypertension on radial strain in multiple layers. European Heart Journal, Supplement. 32: 1008-1009.
  • Davidsen, Einar Skulstad; Cramariuc, Dana; Bleie, Øyvind; Gerdts, Eva; Matre, Knut. 2011. Increased systolic strain rate early after transcatheter aortic valve implantation. European Journal of Echocardiography. 12: ii37-ii37. doi: 10.1093/ejechocard/jer206
  • Hjertaas, Johannes Just; Fosså, Henrik; Dybdahl, Grete Lunestad; Grüner, Renate; Lunde, Per; Matre, Knut. 2011. Accuracy of real-time single and multi beat 3D speckle tracking echocardiography in vitro. European Journal of Echocardiography. 12: ii5-ii6. doi: 10.1093/ejechocard/jer202
  • Moen, Christian Arvei; Salminen, Pirjo-Riitta; Grong, Ketil; Matre, Knut. 2011. Left ventricular strain, rotation, and torsion as markers of acute myocardial ischemia. American Journal of Physiology. Heart and Circulatory Physiology. 300: H2142-H2154. doi: 10.1152/ajpheart.01012.2010
  • Moen, Christian Arvei; Salminen, Pirjo-Riitta; Grong, Ketil; Matre, Knut. 2011. Multilayer radial strain measurements can detect early reperfusion from ischemia. An experimental porcine study. European Journal of Echocardiography. 12: ii83-ii83. doi: 10.1093/ejechocard/jer211
  • Salminen, Pirjo-Riitta; Jonassen, Anne K.; Aarnes, Eva-Katrine; Moen, Christian Arvei; Stangeland, Lodve; Eliassen, Finn; Kongsvik, Ruth Elisabeth; Matre, Knut; Haaverstad, Rune; Grong, Ketil. 2011. Antiapoptotic Intervention in Repeated Blood Cardioplegia: A Porcine Study of Myocardial Function. Annals of Thoracic Surgery. 91: 784-792. doi: 10.1016/j.athoracsur.2010.10.060
  • Cramariuc, Dana; Gerdts, Eva; Davidsen, Einar Skulstad; Segadal, Leidulf; Matre, Knut. 2010. Myocardial deformation in aortic valve stenosis – relation to left ventricular geometry. Heart. 96: 106-112. doi: 10.1136/hrt.2009.172569
  • Davidsen, Einar Skulstad; Moen, Christian Arvei; Matre, Knut. 2010. Radial deformation by tissue Doppler imaging in multiple myocardial layers. Scandinavian Cardiovascular Journal. 44: 82-91. doi: 10.3109/14017430903177708
  • Moen, Christian Arvei; Salminen, Pirjo-Riitta; Grong, Ketil; Matre, Knut. 2010. Multilayer radial strain measurements detect reduction in myocardial perfusion before longitudinal, circumferential, radial strain and rotation. An experimental porcine study. European Journal of Echocardiography. 11: ii3-ii4. doi: doi:10.1093/ejechocard/jeq132
  • Ahmed, Aymen B; Gilja, Odd Helge; Hausken, Trygve; Gregersen, Hans; Matre, Knut. 2009. Strain measurement during antral contractions by ultrasound strain rate imaging: influence of erythromycin. Neurogastroenterology and Motility. 21: 170-179. doi: 10.1111/j.1365-2982.2007.01043.x
  • Cramariuc, Dana; Gerdts, Eva; Davidsen, Einar Skulstad; Segadal, Leidulf; Matre, Knut. 2009. 2D Longitudinal Myocardial Strain: A More Sensitive Parameter of Left Ventricular Dysfunction in Aortic Valve Stenosis? Circulation. 120: S372-S373.
  • Fanneløp, Tord Olav; Dahle, Geir Olav; Salminen, Pirjo-Riitta; Moen, Christian Arvei; Matre, Knut; Mongstad, Arve; Eliassen, Finn; Segadal, Leidulf; Grong, Ketil. 2009. Multidose cold oxygenated blood is superior to a single dose of bretschneider HTK-cardioplegia in the pig. Annals of Thoracic Surgery. 87: 1205-1213. doi: 10.1016/j.athoracsur.2009.01.041
  • Hergum, Torbjørn; Skaug, Thomas Renhult; Matre, Knut; Torp, Hans. 2009. Quantification of Valvular Regurgitation Area and Geometry Using HPRF 3-D Doppler. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 56: 975-982. doi: 10.1109/TUFFC.2009.1129
  • Cramariuc, Dana; Gerdts, Eva; Davidsen, Einar Skulstad; Matre, Knut. 2008. The differential impact of static and pulsatile blood pressure components on regional myocardial deformation in patients with asymptomatic aortic valve stenosis. A SEAS substudy. Journal of Hypertension. 26: S255-S256.
  • Fanneløp, Tord Olav; Dahle, Geir Olav; Matre, Knut; Moen, Christian Arvei; Mongstad, Arve; Eliassen, Finn; Segadal, Leidulf; Grong, Ketil. 2008. Esmolol before 80 min of cardiac arrest with oxygenated cold blood cardioplegia alleviates systolic dysfunction. An experimental study in pigs. European Journal of Cardio-Thoracic Surgery. 33: 9-17. doi: 10.1016/j.ejcts.2007.10.011
  • Havre, Roald Flesland; Elde, Erlend; Gilja, Odd Helge; Ødegaard, Svein; Eide, Geir Egil; Matre, Knut; Nesje, Lars B. 2008. Freehand real-time elastography: Impact of scanning parameters on image quality and In Vitro intra- and interobserver validations. Ultrasound in Medicine and Biology. 34: 1638-1650. doi: 10.1016/j.ultrasmedbio.2008.03.009
  • Nylund, Kim; Leh, Sabine; Immervoll, Heike; Matre, Knut; Skarstein, Arne; Hausken, Trygve; Gilja, Odd Helge; Nesje, Lars B; Ødegaard, Svein. 2008. Crohn's disease: Comparison of in vitro ultrasonographic images and histology. Scandinavian Journal of Gastroenterology. 43: 719-726. doi: 10.1080/00365520801898855
  • Matre, Knut; Moen, Christian Arvei; Fanneløp, Tord Olav; Dahle, Geir Olav; Grong, Ketil. 2007. Multilayer radial systolic strain can identify subendocardial ischemia: An experimental tissue Doppler imaging study of the porcine left ventricular wall. European Journal of Echocardiography. 8: 420-430. doi: 10.1016/j.euje.2007.03.031
  • Stormark, Tor Andre; Strømmen, Kenneth; Iversen, Bjarne Magnus; Matre, Knut. 2007. Three-dimensional ultrasonography can detect the modulation of kidney volume in two-kidney, one-clip hypertensive rats. Ultrasound in Medicine and Biology. 33: 1882-1888. doi: 10.1016/j.ultrasmedbio.2007.06.010
  • Ahmed, Aymen B; Gilja, Odd Helge; Gregersen, Hans; Ødegaard, Svein; Matre, Knut. 2006. In vitro strain measurement in the porcine antrum using Doppler strain rate imaging. Ultrasound in Medicine and Biology. 32: 513-522. doi: 10.1016/j.ultrasmedbio.2005.12.019
  • Ahmed, Aymen B; Gilja, Odd Helge; Gregersen, Hans; Ødegaard, Svein; Matre, Knut. 2006. In vitro strain measurement in the porcine antrum using ultrasound Doppler strain rate imaging. Ultrasound in Medicine and Biology. 32.
  • Hoff, Dag Arne Lihaug; Gregersen, Hans; Ødegaard, Svein; Nesje, Lars B; Øvrebø, Kjell; Hausken, Trygve; Gilja, Odd Helge; Matre, Knut; Hatlebakk, Jan Gunnar. 2006. A multimodal laser Doppler and endosonographic distension device for studying mechanosensation and mucosal blood flow in the oesophagus. Neurogastroenterology and Motility. 18: 243-248. doi: 10.1111/j.1365-2982.2005.00738.x
  • Davidsen, Einar Skulstad; Matre, Knut. 2005. Systolic radial strain in 3 layers across the myocardial wall in normal humans. European Journal of Echocardiography. 6: S92.
  • Matre, Knut; Fanneløp, Tord Olav; Dahle, Geir Olav; Heimdal, Andreas; Grong, Ketil. 2005. Radial strain gradient across the normal myocardial wall in open-chest pigs measured with Doppler strain rate imaging. Journal of the American Society of Echocardiography. 18: 1066-1073. doi: 10.1016/j.echo.2005.01.031
  • Matre, Knut; Fanneløp, Tord Olav; Moen, Christian Arvei; Dahle, Geir Olav; Grong, Ketil. 2005. Radial strain in 4 layers across the left ventricular wall. An experimental TVI study in pigs demonstrating the influence of ischaemia. European Journal of Echocardiography. 6: S192.
  • Schuster, Peter Moritz; Matre, Knut; Færestrand, Svein. 2005. Assessment of regional timing of left ventricular sytolic longitudinal movement by Doppler tissue synchronization imaging in structurally normal hearts. European Journal of Echocardiography. 6: 336-343.
  • Fanneløp, Tord Olav; Dahle, Geir Olav; Matre, Knut; Segadal, Leidulf; Grong, Ketil. 2004. An anaesthetic protocol in the young domestic pig allowing neuromuscular blockade for studies of cardiac function following cardioplegic arrest and cardiopulmonary bypass. Acta Anaesthesiologica Scandinavica. 48: 1144-1154.
  • Strømmen, Kenneth; Stormark, Tor A.; Iversen, Bjarne Magnus; Matre, Knut. 2004. Volume estimation of small phantoms and rat kidneys using three-dimensional ultrasonography and a position sensor. Ultrasound in Medicine and Biology. 30: 1109-1117.
  • Matre, Knut; Ahmed, Aymen B; Gregersen, Hans; Heimdal, Andreas; Hausken, Trygve; Ødegaard, Svein; Gilja, Odd Helge. 2003. In vitro evaluation of ultrasound Doppler strain rate imaging: modification for measurement in a slowly moving tissue phantom. Ultrasound in Medicine and Biology. 29: 1725-1734.
  • Matre, Knut; Kvitting, Peder; Zhou, Y.Q.; Færestrand, Svein. 2003. The effect of body weight on the degree of blood velocity profile skewness in the aortic annulus in domestic pigs. Laboratory Animals. Journal of the Laboratory Animal Science Association. 37: 72-80.
  • Gilja, Odd Helge; Heimdal, Andreas; Hausken, Trygve; Gregersen, Hans; Matre, Knut; Berstad, Arnold; Ødegaard, Svein. 2002. Strain during gastric contractions can be measured using Doppler ultrasonography. Ultrasound in Medicine and Biology. 28: 1457-1465.
  • Gregersen, Hans; Gilja, Odd Helge; Hausken, Trygve; Heimdal, Andreas; Gao, Chunwen; Matre, Knut; Ødegaard, Svein; Berstad, Arnold. 2002. Mechanical properties in the human gastric antrum using B-mode ultrasonography and antral distension. American Journal of Physiology - Gastrointestinal and Liver Physiology. 283: G368-G375.
  • Heltne, Jon-Kenneth; Farstad, Marit; Lund, Tjøstolv; Koller, Mai-Elin; Matre, Knut; Rynning, Stein Erik; Husby, Paul. 2002. Determination of plasma volume in anaesthetized piglets using the carbon monoxide (CO) method. Laboratory Animals. Journal of the Laboratory Animal Science Association. 36: 344-350.
  • Matre, Knut; Ersland, Lars; Larsen, Terje H; Andersen, Erling. 2002. In vitro agreement between magnetic resonance imaging and intraluminal Doppler ultrasound for high flow velocity measurements. Scandinavian Cardiovascular Journal. 36: 180-186.
  • Vikenes, Kjell; Westby, Jørgen; Matre, Knut; Farstad, Mikael; Nordrehaug, Jan Erik. 2002. Percutaneous assessment of coronary blood flow and cardiac biomarkers. Ultrasound in Medicine and Biology. 28: 39-48.
  • Vikenes, Kjell; Westby, Jørgen; Matre, Knut; Kuiper, Karel K. J.; Farstad, Mikael; Nordrehaug, Jan Erik. 2002. Release of cardiac troponin I after temporally graded acute coronary ischaemia with electrocardiographic ST depression. International Journal of Cardiology. 85: 243-251.
  • Kvitting, Peder; Matre, Knut; Hessevik, Idar; Grong, Ketil; Segadal, Leidulf. 1999. Velocity distribution in the ascending aorta in pigs during chronotropic and inotropic stimulation. Scandinavian Cardiovascular Journal. 33: 199-205.
  • Matre, Knut; Stokke, Elisabeth M; Martens, Ditlef; Gilja, Odd Helge. 1999. In vitro volume estimation of kidneys using three-dimensional ultrrasonography and a position sensor. European Journal of Ultrasound. 10: 65-73.
  • Gilja, Odd Helge; Hausken, Trygve; Olafsson, Snorri; Matre, Knut; Ødegaard, Svein. 1998. In vitro evaluation of three-dimensional ultrasonography based on magnetic scanhead tracking. Ultrasound in Medicine and Biology. 24: 1161-1167.
  • Iversen, Bjarne Magnus; Kvam, Fred I.; Matre, Knut; Ofstad, Jarle. 1998. Resetting of RBF autoregulation during acute pressure reduction in hypertensive rats. American Journal of Physiology. Regulatory Integrative and Comparative Physiology. 275: 343-349.
  • Nesje, LB; Skarstein, Arne; Matre, Knut; Myking, AO; Ødegaard, Svein. 1998. Dieulafoy's vascular malformation: Role of endoscopic ultrasonography in therapeutic decision-making. Scandinavian Journal of Gastroenterology. 33: 104-108.
  • Nesje, LB; Skarstein, Arne; Matre, Knut; Ødegaard, Svein. 1998. Dieulafoy's vascular malformation: Role of endoscopic ultrasonography in therapeutic decision-making. Scandinavian Journal of Gastroenterology. 33: 104-108.
  • Nesje, Lars B; Skarstein, Arne; Matre, Knut; Myking, AO; Ødegaard, Svein. 1998. Dieulafoy's vascular malformation: role of endoscopic ultrasonography in therapeutic decision-making. Scandinavian Journal of Gastroenterology. 33: 104-108.
  • Zhou, Y. Q.; Faerestrand, S.; Birkeland, S.; Matre, Knut; Husby, Paul; Koller, Mai-Elin. 1997. Effects of velocity distribution, diameter measurement and velocity tracing on the accuracy of cardiac output measurement by pulsed Doppler echocardiography in the aortic annulus. Ultrasound in Medicine and Biology. 23: 177-185.
  • Zhou, YQ; Birkeland, S; Matre, Knut; Husby, Paul; Koller, ME. 1997. Effects of velocity distribution. Diameter measurement and velocity tracing on the accuracy of cardiac output measurement by pulsed Doppler echocardiography in the aortic annulus. Ultrasound in Medicine and Biology. 23: 177-185.
  • Kvitting, Peder M; Hessevik, Idar; Matre, Knut; Segadal, Leidulf. 1996. Three-dimensional cross-sectional velocity distribution in the ascending aorta in cardiac patients. Clinical Physiology. 16: 239-258.
  • Kvitting, Peder M; Hessevik, Idar; Matre, Knut; Segadal, Leidulf. 1996. Three-dimensional cross-sectional velocity distribution in the ascending aorta in cardiac patients. Clinical Physiology. 16: 239-258.
  • Mørkve, Odd; Halstensen, Alfred; Matre, Knut. 1996. Evaluering av undervisningen i indremedisin ved Universitetet i Bergen. Effekt av økning i studenttall, ny studieplan og innføring i nytt studiested. UPED-skrift. 2. 142-161.
  • Mørkve, Odd; Halstensen, Alfred; Matre, Knut. 1996. Evaluering av undervisningen i indremedisin ved Universitetet i Bergen. Effekt av økning i studenttall, ny studieplan og innføring i nytt studiested. UPED-skrift. 2. 142-161.
  • Thune, Nils; Gilja, Odd Helge; Hausken, Trygve; Matre, Knut. 1996. A practical method for estimating enclosed volumes using 3D ultrasound. European Journal of Ultrasound. 3: 83-92.
  • Zhou, Yu-Qing; Færestrand, Svein; Matre, Knut. 1996. Velocity distribution in the aortic annulus in patients with primary dilated and ischemic cardiomyopathy measured using Doppler ultrasound. European Journal of Ultrasound. 3: 211-221.
  • Berstad, Arnold; Hausken, Trygve; Gilja, OH; Thune, N; Matre, Knut; Ødegaard, Svein. 1995. Volume measurements of the antrum by 3D-ultrasonography and flow measurements through the pylorus by duplex technique. Digestive Diseases and Sciences. 39: 97-100.
  • Gilja, OH; Smievoll, AI; Thune, N; Matre, Knut; Hausken, Trygve; Ødegaard, Svein; Berstad, Arnold. 1995. In vivo comparison of 3D ultrasonography and Magnetic Response Imaging in volume estimation of human kidneys. Ultrasound in Medicine and Biology. 21: 25-32.
  • Hessevik, Idar; Matre, Knut; Kvitting, Peder M.; Segadal, Leidulf. 1995. Intraluminal recording of cross-sectional blood velocity distribution of human ascending aorta by ultrasound Doppler technique. Medical and Biological Engineering and Computing. 32: 171-177.
  • Berstad, Arnold; Hausken, Trygve; Gilja, Odd Helge; Thune, Nils; Matre, Knut; Ødegaard, Svein. 1994. Volume measurement of gastric antrum by 3-D ultrasonography and flow measurements through the pylorus by duplex technique. Digestive Diseases and Sciences. 39: 97-100.
  • Birkeland, Sigurd; Westby, Jørgen; Matre, Knut; Færestrand, Svein; Grong, Ketil. 1994. Myocardial contraction patterns in non-ischaemic and ischaemic regions during acute coronary insufficiency. European Heart Journal. 15: 424-433.
  • Gilja, Odd Helge; Thune, Nils; Matre, Knut; Hausken, Trygve; Ødegaard, Svein; Berstad, Arnold. 1994. In vitro evaluation of three-dimensional ultrasonography in volume estimation of abdominal organs. (Tilknyttet prosjektet: Pasienter med funksjonell dyspepsi studert v.h.a. 3-dimensjonal ultralyd.). Ultrasound in Medicine and Biology. 20: 157-165.
  • Hausken, Trygve; Thune, N.; Matre, Knut; Gilja, O.H.; Ødegaard, Svein; Berstad, Arnold. 1994. Volume estimation of the gastric antrum and the gallbladder in patients with non-ulcer dyspepsia and erosive prepyloric changes, using three-dimensional ultrasonography. Neurogastroenterology and Motility. 6: 263-270.
  • Hessevik, Idar; Matre, Knut; Kvitting, Peder M.; Segadal, Leidulf. 1994. Intraluminal recording of cross-sectional blood velocity distribution of human ascending aorta by ultrasound doppler technique. Medical and Biological Engineering and Computing. 32: 171-177.
  • Matre, Knut; Birkeland, S.; Hessevik, Idar; Segadal, Leidulf. 1994. Comparison of transit-time and Doppler ultrasound methods for measurement of flow in aortocoronary bypass grafts during cardiac surgery. The thoracic and cardiovascular surgeon. 170-174.
  • Matre, Knut; Birkeland, S.; Hessevik, Idar; Segadal, Leidulf. 1994. Comparison of transit-time and Doppler ultrasound methods for measurement of flow in aortocoronary bypass grafts during cardiac surgery. The thoracic and cardiovascular surgeon. 170-174.
  • Hausken, Trygve; Thune, N.; Matre, Knut; Gilja, Odd Helge; Ødegaard, Svein; Berstad, Arnold. 1993. New device shows enlarged antrum in dyspeptic patients. Internat Gastroenterol Observer. 1: 5-6.
  • Hausken, Trygve; Berstad, Arnold; Matre, Knut; Ødegaard, Svein. 1992. Antroduodenal motility and movements of luminal contents studied by Duplex-sonography. Gastroenterology. 102: 1583-1590.
  • Hausken, Trygve; Ødegaard, Svein; Matre, Knut; Børkje, Bjarte; Berstad, Arnold. 1992. Untersuchungen der gastroduodenalen Motilität mit Realtime Ultrasonographie. Ultraschall in Klinik und Praxis. 7.
  • Hexeberg, Erik; Birkeland, Sigurd; Grong, Ketil; Matre, Knut; Lekven, Jon. 1992. Coronary artery stenosis provokes nonuniformity of twodimensional deformation in the anterior wall of the feline left ventricle. European Heart Journal. 13: 981-989.
  • Hexeberg, Erik; Birkeland, Sigurd; Grong, Ketil; Matre, Knut; Lekven, Jon. 1992. Coronary artery stenosis provokes non-uniformity of two-dimensional deformation in the anterior wall of the feline left ventricle. European Heart Journal. 13: 981-989.
  • Iversen, Bjarne Magnus; Kvam, Fred Ivan; Matre, Knut; Mørkrid, Lars; Horvei, Gunnar; Bagchus, Wilma; Grond, Joris; Ofstad, Jarle. 1992. Effect of mesangiolysis on autoregulation of renal blood flow and glomerular filtration in rats. American Journal of Physiology - Renal Physiology. 262: F361-F366.
  • Ødegaard, Svein; Nesje, Lars B; Kimmey, M.B.; Matre, Knut. 1992. Trabsendoskopische Ultraschalldiagnostik bei Läsionen im Oberen Verdauungstrakt im Rahmen der Routineendoskopi. Ultraschall in Klinik und Praxis. 7: 99-103.
  • Hexeberg, Erik; Birkeland, Sigurd; Grong, Ketil; Matre, Knut; Lekven, Jon. 1991. Left coronary artery stenosis provokes nonuniformity of myocardial contraction. Hjerteforum. 4: Abstr. 91.
  • Birkeland, Sigurd; Hexeberg, Erik; Matre, Knut; Kvitting, Peder; Westby, Jørgen; Lekven, Jon; Grong, Ketil. 1990. Gradual reduction of coronary perfusion pressure in cats: changes in transmural distribution of blood flow. Scandinavian Journal of Clinical and Laboratory Investigation. 50: 787-796.
  • Matre, Knut; Hexeberg, Erik; Grong, Ketil; Lekven, Jon. 1987. Local myocardial function following coronary occlusion in cats. Effect on non-ischaemic regions. Clinical Physiology. 93: 511-523.
Reports and theses
  • Matre, Knut. 1988. Invasive ultrasound for assessment of cardiac function : application of transit-time ultrasound for evaluation of myocardial contraction, and Doppler ultrasound for measure- ment of cardiac output.
Book sections
  • Øye, Ola Kristoffer; Wein, Wolfgang; Ulvang, Dag Magne; Matre, Knut; Viola, Ivan. 2012. Real Time Image-Based Tracking of 4D Ultrasound Data. Chapter 55, pages 447-454. In:
    • Ayache, Nicholas; Delingette, Herve; Golland, Polina; Kensaku, Mori. 2012. Medical Image Computing and Computer-Assisted Intervention -- MICCAI 2012 Proceedings, Part I. Springer. 746 pages. ISBN: 978-3-642-33415-3.
  • Matre, Knut; Gilja, Odd Helge. 2011. Medical imaging. 7, pages 147-175. In:
    • Postema, Michiel. 2011. Fundamentals of Medical Ultrasonics. Spon press. 248 pages. ISBN: 978-0-415-56353-6.
  • Gregersen, Hans; Matre, Knut. 2005. The Use of Ultrasound in Biomechanics. Kap 2, pages 23-53. In:
    • Ødegaard, Svein; Gilja, Odd Helge; Gregersen, Hans. 2005. Basic and New Aspects of Gastrointestinal Ultrasonography. World Scientific. 502 pages. ISBN: 981-238-845-1.
  • Matre, Knut; Dahl, Peter Hans. 2005. Basic Technologies in Ultrasound. Kap 1, pages 1-21. In:
    • Ødegaard, Svein; Gilja, Odd Helge; Gregersen, Hans. 2005. Basic and New Aspects of Gastrointestinal Ultrasonography. World Scientific. 502 pages. ISBN: 981-238-845-1.
  • Gilja, Odd Helge; Thune, N.; Matre, Knut; Hausken, Trygve; Ødegaard, Svein; Berstad, A. 1995. In vitro evaluation of three dimensional ultrasonography in volume estimation of organs. 363-364. In:
    • Merritt, C. R. B. 1995. The yearbook of ultrasound.

More information in national current research information system (CRIStin)

B.Sc. Applied Physics, Heriot-Watt University, Edinburgh, Scotland

M.Sc. Medical Physics, Aberdeen University, Scotland

dr.philos (ph.D.) University of Bergen

Current projects

1. Effect of left ventricular hypertrophy on myocardial strain and torsion

2. Studies on myocardial dysfunction following ischemia and reperfusion

3. Develoment of acoustic phantoms

4. Accuracy of cardiac 3D deformation methods