Name: robotic mirror therapy system for functional recovery of hemiplegic arms
Uploaded: 2016-08-15T15:00:00
Description: Watch this Scientific Journal Video about Robotic Mirror Therapy System for Functional Recovery of Hemiplegic Arms at JoVE.com

Dette arbeidet ble støttet av Brain Fusion Program for Seoul National University (800-20120444) og Tverrfaglig satsinger Program fra College of Engineering og College of Medicine, Seoul National University (800-20150090).

Alle prosedyrer ble gjennomgått og godkjent av Institutional Review Board of Seoul National University Hospital. 1. Mirror Therapy Oppgaver <ol><li> Eksempler på to-dimensjonal speil behandlingsoppgaver (Figur 3) <ol><li> Fritt flytte den sunne armen mens du ser i speilet ca 5 min for warm-up trening. MERK: Man kan benytte en metronom slik at pasienten kan utøve bevegelsen av den friske arm i en rytmisk måte. </li><li> På sunne siden, drible og plassere en liten ball i den valgte h...

<ol>
	<li>Hamzei, F., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Functional+plasticity+induced+by+mirror+training:+the+mirror+as+the+element+connecting+both+hands+to+one+hemisphere.">Functional plasticity induced by mirror training: the mirror as the element connecting both hands to one hemisphere.</a> Neurorehabil Neural Repair. 26 (5), 484-496 (2012).</li><li>Thieme, H., Mehrholz, J., Pohl, M., Behrens, J., Dohle, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mirror+therapy+for+improving+motor+function+after+stroke.">Mirror therapy for improving motor function after stroke.</a> Cochrane Database Syst Rev. 3, CD008449 (2012).</li><li>Dohle, C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mirror+therapy+promotes+recovery+from+severe+hemiparesis:+a+randomized+controlled+trial.">Mirror therapy promotes recovery from severe hemiparesis: a randomized controlled trial.</a> Neurorehabil Neural Repair. 23 (3), 209-217 (2009).</li><li>Pervane Vural, S., Nakipoglu Yuzer, G. F., Sezgin Ozcan, D., Demir Ozbudak, S., Ozgirgin, N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effects+of+Mirror+Therapy+in+Stroke+Patients+With+Complex+Regional+Pain+Syndrome+Type+1:+A+Randomized+Controlled+Study.">Effects of Mirror Therapy in Stroke Patients With Complex Regional Pain Syndrome Type 1: A Randomized Controlled Study.</a> Arch Phys Med Rehabil. 97 (4), 575-581 (2016).</li><li>De Santis, D., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Robot-assisted+training+of+the+kinesthetic+sense:+enhancing+proprioception+after+stroke.">Robot-assisted training of the kinesthetic sense: enhancing proprioception after stroke.</a> Front Hum Neurosci. 8, 1037 (2015).</li><li>Smorenburg, A. R., Ledebt, A., Deconinck, F. J., Savelsbergh, G. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Practicing+a+matching+movement+with+a+mirror+in+individuals+with+spastic+hemiplegia.">Practicing a matching movement with a mirror in individuals with spastic hemiplegia.</a> Res Dev Disabil. 34 (9), 2507-2513 (2013).</li><li>Semrau, J. A., Herter, T. M., Scott, S. H., Dukelow, S. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Robotic+identification+of+kinesthetic+deficits+after+stroke.">Robotic identification of kinesthetic deficits after stroke.</a> Stroke. 44 (12), 3414-3421 (2013).</li><li>Niku, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Chapter+4,+Dynamic+Analysis+and+Forces.">Chapter 4, Dynamic Analysis and Forces.</a> Introduction to Robotics: Analysis, Systems, Applications. , (2001).</li><li>Sanford, J., Moreland, J., Swanson, L. R., Stratford, P. W., Gowland, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Reliability+of+the+Fugl-Meyer+assessment+for+testing+motor+performance+in+patients+following+stroke.">Reliability of the Fugl-Meyer assessment for testing motor performance in patients following stroke.</a> Phys Ther. 73 (7), 447-454 (1993).</li><li>Bohannon, R. W., Smith, M. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Interrater+reliability+of+a+modified+Ashworth+scale+of+muscle+spasticity.">Interrater reliability of a modified Ashworth scale of muscle spasticity.</a> Phys Ther. 67 (2), 206-207 (1987).</li><li>Shah, S., Vanclay, F., Cooper, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Improving+the+sensitivity+of+the+Barthel+Index+for+stroke+rehabilitation.">Improving the sensitivity of the Barthel Index for stroke rehabilitation.</a> J Clin Epidemiol. 42 (8), 703-709 (1989).</li><li>Lo, A. C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Robot-assisted+therapy+for+long-term+upper-limb+impairment+after+stroke.">Robot-assisted therapy for long-term upper-limb impairment after stroke.</a> N Engl J Med. 362 (19), 1772-1783 (2010).</li><li>Ho, N. S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+EMG-driven+exoskeleton+hand+robotic+training+device+on+chronic+stroke+subjects:+task+training+system+for+stroke+rehabilitation.">An EMG-driven exoskeleton hand robotic training device on chronic stroke subjects: task training system for stroke rehabilitation.</a> IEEE Int Conf Rehabil Robot. , 5975340 (2011).</li><li>Hesse, S., Schulte-Tigges, G., Konrad, M., Bardeleben, A., Werner, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Robot-assisted+arm+trainer+for+the+passive+and+active+practice+of+bilateral+forearm+and+wrist+movements+in+hemiparetic+subjects.">Robot-assisted arm trainer for the passive and active practice of bilateral forearm and wrist movements in hemiparetic subjects.</a> Arch Phys Med Rehabil. 84 (6), 915-920 (2003).</li><li>Lum, P. S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=MIME+robotic+device+for+upper-limb+neurorehabilitation+in+subacute+stroke+subjects:+A+follow-up+study.">MIME robotic device for upper-limb neurorehabilitation in subacute stroke subjects: A follow-up study.</a> J Rehabil Res Dev. 43 (5), 631-642 (2006).</li><li>Yang, C. L., Lin, K. C., Chen, H. C., Wu, C. Y., Chen, C. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pilot+comparative+study+of+unilateral+and+bilateral+robot-assisted+training+on+upper-extremity+performance+in+patients+with+stroke.">Pilot comparative study of unilateral and bilateral robot-assisted training on upper-extremity performance in patients with stroke.</a> Am J Occup Ther. 66 (2), 198-206 (2012).</li><li>Nef, T., Mihelj, M., Riener, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=ARMin:+a+robot+for+patient-cooperative+arm+therapy.">ARMin: a robot for patient-cooperative arm therapy.</a> Med Biol Eng Comput. 45 (9), 887-900 (2007).</li><li>Ozkul, F., Barkana, D. E., Demirbas, S. B., Inal, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Evaluation+of+proprioceptive+sense+of+the+elbow+joint+with+RehabRoby.">Evaluation of proprioceptive sense of the elbow joint with RehabRoby.</a> IEEE Int Conf Rehabil Robot. , 5975466 (2011).</li><li>Pehlivan, A. U., Celik, O., O'Malley, M. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanical+design+of+a+distal+arm+exoskeleton+for+stroke+and+spinal+cord+injury+rehabilitation.">Mechanical design of a distal arm exoskeleton for stroke and spinal cord injury rehabilitation.</a> IEEE Int Conf Rehabil Robot. , 5975428 (2011).</li><li>Zhang, H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Feasibility+studies+of+robot-assisted+stroke+rehabilitation+at+clinic+and+home+settings+using+RUPERT.">Feasibility studies of robot-assisted stroke rehabilitation at clinic and home settings using RUPERT.</a> IEEE Int Conf Rehabil Robot. , 5975440 (2011).</li></ol>

Det primære formål med denne studien var å utvikle en sanntids speilrobotsystem for funksjonell helbredelse av en hemiplegic arm ved hjelp av en automatisk reguleringsalgoritme. Effekten av robotassistert terapi på langsiktige utvinningen av øvre lem svikt etter hjerneslag ble påvist gunstig i tidligere studier 12, og ulike typer arm roboter har blitt innført 13-20. Imidlertid tidligere studier av overekstremitetene roboter som realiseres bilateral arm bevegelsen påføres mekaniske forbinde...

For pasienter med hjerneslag, har dysfunksjon av en hemiplegisk arm ødeleggende effekt. Evnen til å utføre bimanual aktiviteter er viktig for dagliglivet, men funksjonell underskudd på en hemiplegisk arm forblir ofte enda et par år etter symptomdebut. Blant ulike opplæringsprogrammer på sykehuset, til en øvelse øke omfanget av bevegelse eller passiv repetisjon av enkle oppgaver har liten effekt på funksjonell bedring av en hemiplegisk arm. Av denne grunn har trening av meningsfulle oppgaver knyttet til dagliglivets aktiviteter (ADLs) blitt brukt til ergoterapi i sykehus. Virkningene av speil terapi ble påvist ved tidligere studier i neurorehabilitation 1-4. Speil terapi utføres ved utløsning av en illusjon ved bruk av et speil som om hemiplegic armen beveger seg i sanntid mens bevegelse av friske arm. Det kan lette hjernen neuroplasticity ved aktivering av sensorisk cortex en. Dermed motor kraft og funksjon av hemiplegic armen kan forbedres. Imidlertid har konvensjonelle speil terapi en kritisk begrensning ved at hemiplegic armen ikke er faktisk beveger seg. Derfor utviklet vi en real-time to-aksen speil robot system som en enkel add-on modulen til vanlig speil terapi, ved hjelp av lukket feedback mekanisme. Dette kan formidle proprioseptive innspill til den sensoriske cortex, som er ansett som viktig i neuroplasticity og funksjonell utvinning av en hemiplegisk arm (figur 1 og 2) 5-7.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td>LabVIEW</td>
			<td>National Instruments</td>
			<td></td>
			<td>System design software</td>
		</tr>
		<tr>
			<td>24V power supply</td>
			<td>XP Power</td>
			<td>MHP1000PS24 24V</td>
			<td>Any 24V power supply should do</td>
		</tr>
		<tr>
			<td>AHRS sensor receiver</td>
			<td>E2box</td>
			<td>EBRF24GRCV</td>
			<td></td>
		</tr>
		<tr>
			<td>AHRS sensors</td>
			<td>E2box</td>
			<td>EBIMU-9DOFV2</td>
			<td>You will need total 3 sensors. Any AHRS sensors will do</td>
		</tr>
		<tr>
			<td>EC90 flat motor module</td>
			<td>Maxon</td>
			<td>323772 + 223094 + 453231</td>
			<td>Any geared motor with higher than 30Nm should do. (For our custom machined parts, you will need these particular flat motor and gear module, but the gear ratio and encoder may vary)&#160;</td>
		</tr>
		<tr>
			<td>EC45 flat motor module</td>
			<td>Maxon</td>
			<td>397172</td>
			<td>Any geared motor with higher than 10Nm should do (For our custom machined parts, you should use the same gear module but the gear ratio, motor, and encoder may vary)</td>
		</tr>
		<tr>
			<td>EPOS2 70/10 controller</td>
			<td>Maxon</td>
			<td>375711</td>
			<td>This can be replaced with EPOS 24/5 controller</td>
		</tr>
		<tr>
			<td>EPOS2 24/5 controller</td>
			<td>Maxon</td>
			<td>367676</td>
			<td></td>
		</tr>
		<tr>
			<td>Connector and cable set</td>
			<td>Maxon</td>
			<td>381405 + 384915 + 275934 + 354045</td>
			<td>You can also make these cables. Connectors and corresponding wire info can be found in &#34;300583-Hardware-Reference-En.pdf&#34; and &#34;300583-Cable-Starting-Set-En.pdf&#34;</td>
		</tr>
		<tr>
			<td>Coupling- Oldham, Set Screw Type</td>
			<td>Misumi</td>
			<td>MCORK30-10-12</td>
			<td>Type may vary</td>
		</tr>
		<tr>
			<td>Coupling- High Rigidity, Oldham, 
			Set Screw Type</td>
			<td>Misumi</td>
			<td>MCOGRK34-12-12</td>
			<td>Type may vary</td>
		</tr>
		<tr>
			<td>Shaft Collars</td>
			<td>Misumi</td>
			<td>SCWDM10-B &#160;</td>
			<td>You will need 4 sets</td>
		</tr>
		<tr>
			<td>Shaft Collars</td>
			<td>Misumi</td>
			<td>SDBJ10-8</td>
			<td>You will need 2 sets</td>
		</tr>
		<tr>
			<td>Precision Linear Shaft</td>
			<td>Misumi</td>
			<td>&#160;PSSFG10-200</td>
			<td>Any straight 10mm diameter shaft with at least 200mm length should do&#160;</td>
		</tr>
		<tr>
			<td>Bearings with housings</td>
			<td>Misumi</td>
			<td>BGRAB6801ZZ</td>
			<td></td>
		</tr>
		<tr>
			<td>Elbow motor force dispersion shaft&#160;</td>
			<td>custom machined</td>
			<td>3D CAD&#160;</td>
			<td></td>
		</tr>
		<tr>
			<td>Lower elbow support</td>
			<td>custom machined</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Elbow rooftop frame</td>
			<td>custom machined</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Support wall</td>
			<td>custom machined</td>
			<td>Part Drawings</td>
			<td>You will need 2 frames.</td>
		</tr>
		<tr>
			<td>Elbow coupling hollow cylinder cover&#160;</td>
			<td>custom machined</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Wrist motor force dispersion shaft</td>
			<td>custom machined</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Wrist rooftop frame</td>
			<td>custom machined</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Upper wrist coupling hollow cylinder cover</td>
			<td>custom machined</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Lower wrist coupling hollow cylinder cover</td>
			<td>custom machined</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Joint movement limiter</td>
			<td>custom machined</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Handle</td>
			<td>3D printed</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Upper elbow support</td>
			<td>3D printed</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Friction reduction ring</td>
			<td>3D printed</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Acrylic mirror</td>
			<td>custom laser cutting</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Task table</td>
			<td>custom machined</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Silicone sponge</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>DOF limiter</td>
			<td>3D printed</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>DOF limiter lid</td>
			<td>3D printed</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Healthyarm handle</td>
			<td>3D printed</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Ball rollers - Press fit</td>
			<td>Misumi</td>
			<td>BCHA18</td>
			<td></td>
		</tr>
		<tr>
			<td>Goalpost</td>
			<td>3D printed</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Circle trace</td>
			<td>3D printed</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
		<tr>
			<td>Angled assist</td>
			<td>3D printed</td>
			<td>Part Drawings</td>
			<td>Optional</td>
		</tr>
		<tr>
			<td>Curved assist</td>
			<td>3D printed</td>
			<td>Part Drawings</td>
			<td>Optional</td>
		</tr>
		<tr>
			<td>Plain assist</td>
			<td>3D printed</td>
			<td>Part Drawings</td>
			<td>Optional</td>
		</tr>
		<tr>
			<td>Task board</td>
			<td>custom laser cutting</td>
			<td>Part Drawings</td>
			<td></td>
		</tr>
	</tbody>
</table>

robotic mirror therapy system for functional recovery of hemiplegic arms

Mirror terapi har blitt utført så effektivt ergoterapi i en klinisk setting for funksjonell utvinning av en hemiplegisk arm etter hjerneslag. Det er utført ved utløsning av en illusjon ved bruk av et speil som om hemiplegic armen beveger seg i sanntid mens bevegelse av friske arm. Det kan lette hjernen neuroplasticity gjennom aktivering av sensorisk cortex. Imidlertid har konvensjonelle speil terapi en kritisk begrensning ved at hemiplegic armen ikke er faktisk beveger seg. Derfor utviklet vi en real-time to-aksen speil robot system som en enkel add-on modulen for vanlig speil behandling ved hjelp av en lukket feedback mekanisme som muliggjør sanntids bevegelse av hemiplegisk arm. Vi brukte tre Attitude og kursreferanse System sensorer, to børsteløse DC-motorer for albue og håndledd ledd, og exoskeletal rammer. I en mulighetsstudie på 6 friske forsøkspersoner, robot speil terapi var trygt og gjennomførbart. Vi videre valgt oppgaver nyttige for aktiviteter daily leve opplæring gjennom tilbakemelding fra rehabilitering leger. En kronisk slagpasient viste bedring i Fugl-Meyer vurderingsskala og albuen flexor spastisitet etter en to-ukers program av speilet robot system. Robot speil behandling kan forbedre proprioseptive inngangssignal til den sensoriske cortex, som er ansett å være viktig i neuroplasticity og funksjonell gjenvinning av hemiplegisk armer. Speilet robot system som presenteres her kan lett utvikles og utnyttes effektivt for å fremme ergoterapi.

Seks friske individer gjennomføres en &quot;penn merking oppgave &#39;(berøre de to små styrer vekselvis med en penn festet på den friske hånd, som vist på figur 17) 10 ganger som tok i gjennomsnitt 106 sek pr emne. Ingen bivirkninger ble observert, og robot speil terapi ble vist seg å være gjennomførbart. I tillegg ble en klinisk studie på rehabiliterings leger utført. Vi ba om ekspertuttalelser fo...

Watch this Scientific Journal Video about Robotic Mirror Therapy System for Functional Recovery of Hemiplegic Arms at JoVE.com

Robotic Mirror Therapy System for Functional Recovery of Hemiplegic Arms

Vi utviklet en real-time speil robot system for funksjonell bedring av hemiplegisk armene ved hjelp av automatisk kontroll teknologi, gjennomført en klinisk studie på friske forsøkspersoner, og bestemte oppgaver gjennom tilbakemeldinger fra rehabilitering leger. Denne enkle speil roboten kan brukes effektivt til ergoterapi i slagpasienter med hemiplegisk arm.

Robotic Mirror Therapy System for funksjonell bedring av hemiplegisk Arms

Mirror therapy has been performed as effective occupational therapy in a clinical setting for functional recovery of a hemiplegic arm after stroke. It is ...

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Pedicle screw implantation has excellent treatment effects and is often used by surgeons in spinal fusion surgery. However, due to the complexity of human ...

Magnetic-, Acoustic-, and Optical-Triple-Responsive Microbubbles for Magnetic Hyperthermia and Pothotothermal Combination Cancer Therapy

Magnetiske, akustiske og optisk-trippel-responsive mikrobobler for magnetisk hypertermi og pothototermisk kombinasjonskreftterapi

The precision delivery of anti-cancer agents which aim for targeted and deep-penetrated delivery as well as a controlled release at the tumor site has ...

Manipulation of Single Neural Stem Cells and Neurons in Brain Slices using Robotic Microinjection

Manipulering av enkle nevrale stamceller og nevroner i hjerneskiver ved hjelp av Robotic Microinjection

A central question in developmental neurobiology is how neural stem and progenitor cells form the brain. To answer this question, one needs to label, ...

Studying Cavitation Enhanced Therapy

Studere kavitasjon forbedret terapi

Interest in the therapeutic applications of ultrasound is significant and growing, with potential clinical targets ranging from cancer to ...

Functional Transcranial Doppler Ultrasound for Monitoring Cerebral Blood Flow

Funksjonell transkraniell doppler ultralyd for overvåking cerebral blodstrøm

Functional transcranial Doppler ultrasound (fTCD) is the use of transcranial Doppler ultrasound (TCD) to study neural activation occurring during stimuli ...