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		题名	作者	年代	出处	被引量
	1	Endogenous motion of liver correlates to the severity of portal hypertension显示文摘BACKGROUND Degree of portal hypertension(PH)is the most important prognostic factor for the decompensation of liver cirrhosis and death,therefore adequate care for patients with liver cirrhosis requires timely detection and evaluation of the presence of clinically significant PH(CSPH)and severe PH(SPH).As the most accurate method for the assessment of PH is an invasive direct measurement of hepatic venous pressure gradient(HVPG),the search for non-invasive methods to diagnose these conditions is actively ongoing.AIM To evaluate the feasibility of parameters of endogenously induced displacements and strain of liver to assess degree of PH.METHODS Of 36 patients with liver cirrhosis and measured HVPG were included in the casecontrol study.Endogenous motion of the liver was characterized by derived parameters of region average tissue displacement signal(dantero,dretro,dRMS)and results of endogenous tissue strain imaging using specific radiofrequency signal processing algorithm.Average endogenous strainμand standard deviationσof strain were assessed in the regions of interest(ROI)(1 cm×1 cm and 2 cm×2 cm in size)and different frequency subbands of endogenous motion(0-10 Hz and 10-20 Hz).RESULTS Four parameters showed statistically significant(P<0.05)correlation with HVPG measurement.The strongest correlation was obtained for the standard deviation of strain(estimated at 0-10 Hz and 2 cm×2 cm ROI size).Three parameters showed statistically significant differences between patient groups with CSPH,but only dretro showed significant results in SPH analysis.According to ROC analysis area under the curve(AUC)of theσROI[0…10Hz,2 cm×2 cm]parameter reached 0.71(P=0.036)for the diagnosis of CSPH;with a cut-off value of 1.28μm/cm providing 73%sensitivity and 70%specificity.AUC for the diagnosis of CSPH forμROI[0…10Hz,1 cm×1 cm]was 0.78(P=0.0024);with a cut-off value of 3.92μm/cm providing 73%sensitivity and 80%specificity.Dretro parameter had an AUC of 0.86(P=0.0001)for the diagnosis of CSPH and 0.84(P=0.0001)for the diagnosis of SPH.A cut-off value of-132.34μm yielded 100%sensitivity for both conditions,whereas specificity was 80%and 72%for CSPH and SPH respectively.CONCLUSION The parameters of endogenously induced displacements and strain of the liver correlated with HVPG and might be used for non-invasive diagnosis of PH.	Sigita Gelman Andrius Sakalauskas Romanas Zykus Andrius Pranculis Rytis Jurkonis Irma Kuliavienė Arūnas Lukoševičius Limas Kupčinskas Juozas Kupčinskas	2020	World Journal of Gastroenterology2020，26，38：	1
	2	Methods for assessing the composition and diversity of soil microbial communities显示文摘	G.T. Hill N.A. Mitkowski L. Aldrich-Wolfe L.R. Emele D.D. Jurkonie A. Ficke S. Maldonado-Ramirez S.T. Lynch E.B. Nelson	2000	Applied Soil Ecology2000，，1：	1
	3	Methods for assessing the composition and diversity of soil microbial communities显示文摘	G.T. Hill N.A. Mitkowski L. Aldrich-Wolfe L.R. Emele D.D. Jurkonie A. Ficke S. Maldonado-Ramirez S.T. Lynch E.B. Nelson	2000	Applied Soil Ecology2000，，1：	1
	4	Investigation of intracranial media ultrasonic monitoring model显示文摘	Petkus V Ragauskas A Jurkonis R	2002	Ultrasonics2002，40，18：	1
	5	Relation between individual tree mortality and tree characteristics in a polluted and non-polluted environment 显示文摘	JUKNYS R VENCLOVIENE J JURKONIS N	2006	Environmental Monitoring and Assessment2006，121，24：	1
	6	Development of virtual and remote Lab experimentation system for electronics engineering显示文摘	Marozas V Jurkonis R Lukosevicius A		0，，87：	1
	7	Investigation of intracranial media ultrasonic monitoring model 显示文摘	PETKUS V RAGAUSKAS A JURKONIS R	2002	Ultra- sonics2002，40，18：	1

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