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Svensson, Christina
Publications (3 of 3) Show all publications
Zachrisson, H., Svensson, C., Lassvik, C. & Eriksson, P. (2018). An extended High frequency ultrasound protocol for detection of vessel wall inflammation.. In: : . Paper presented at Charing Cross venous workshop strain-gauge plethysmography.
Open this publication in new window or tab >>An extended High frequency ultrasound protocol for detection of vessel wall inflammation.
2018 (English)Conference paper, Oral presentation only (Refereed)
National Category
Clinical Medicine
Identifiers
urn:nbn:se:liu:diva-152725 (URN)
Conference
Charing Cross venous workshop strain-gauge plethysmography
Available from: 2018-11-18 Created: 2018-11-18 Last updated: 2018-11-23
Zachrisson, H., Svensson, C., Dremetsika, A. & Eriksson, P. (2018). An extended high-frequency ultrasound protocol for detection of vessel wall inflammation.. Clinical Physiology and Functional Imaging, 38(4), 586-594
Open this publication in new window or tab >>An extended high-frequency ultrasound protocol for detection of vessel wall inflammation.
2018 (English)In: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 38, no 4, p. 586-594Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: The aim of this study was to evaluate an extended protocol of the large vessels using high-frequency duplex ultrasound (DUS) for detection of vessel wall inflammation.

METHODS: Fifty-eight patients performed a DUS examination where arteritis could not be excluded. All DUS examinations were performed using ACUSON S2000 TM ultrasound system (Siemens Medical Solutions USA, Inc.). High-frequency linear transducers were used (18L6 MHz, 9L4MHz) or curve linear for the aortic arch (6C2 MHz). Carotid, vertebral, central neck arteries (subclavian, axillary, innominate) arteries, aortic arch and femoral arteries were studied. Circumferential, homogenous wall thickening, with or without a hyperechogenic stripe lining the innermost layer, were regarded as typical signs of arteritis. Intima-media thickness (IMT) was measured in the patients and a normal control group. The latest clinical updated diagnosis was assessed at least 6 months after DUS.

RESULTS: The DUS findings showed normal vessels (n = 14), arteritis and atherosclerosis (n = 13), atherosclerosis (n = 15) and arteritis (n = 16). The latter group had a significant increased IMT in the common femoral artery and the common carotid artery (mean 1·0 ±  SD 0·3 mm versus 0·6 ± 0·2 mm in the normal group (n = 37), P<0·00001, 1·2 ± 0·5 mm versus 0·8 ± 0·2 mm in the normal group (n = 40), P<0·00001). In the groups with sonographic signs implying arteritis (n = 29), 20 patients had a clinical diagnosis of arteritis, whereas eight patients had another main diagnosis such as malignancy/other inflammatory or infectious disease complicated by inflammation of the vessel wall. One patient had multiple diagnoses and was not possible to classify.

CONCLUSION: An extended ultrasound protocol for central neck and leg arteries could be of value for diagnosis of arteritis. In case of atypical vessel wall inflammation, other main diagnoses should be considered.

Place, publisher, year, edition, pages
John Wiley & Sons, 2018
Keywords
arteritis, high-frequency ultrasound, paramalignant and inflammation
National Category
Clinical Medicine
Identifiers
urn:nbn:se:liu:diva-141104 (URN)10.1111/cpf.12450 (DOI)000434961600007 ()28795494 (PubMedID)
Available from: 2017-09-22 Created: 2017-09-22 Last updated: 2019-05-01
Lindström, S. B., Uhlin, F., Bjarnegård, N., Gylling, M., Nilsson, K., Svensson, C., . . . Länne, T. (2018). Computer-Aided Evaluation of Blood Vessel Geometry From Acoustic Images. Journal of ultrasound in medicine, 37(4), 1025-1031
Open this publication in new window or tab >>Computer-Aided Evaluation of Blood Vessel Geometry From Acoustic Images
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2018 (English)In: Journal of ultrasound in medicine, ISSN 0278-4297, E-ISSN 1550-9613, Vol. 37, no 4, p. 1025-1031Article in journal (Refereed) Published
Abstract [en]

A method for computer-aided assessment of blood vessel geometries based on shape-fitting algorithms from metric vision was evaluated. Acoustic images of cross sections of the radial artery and cephalic vein were acquired, and medical practitioners used a computer application to measure the wall thickness and nominal diameter of these blood vessels with a caliper method and the shape-fitting method. The methods performed equally well for wall thickness measurements. The shape-fitting method was preferable for measuring the diameter, since it reduced systematic errors by up to 63% in the case of the cephalic vein because of its eccentricity.

Place, publisher, year, edition, pages
Wiley-Blackwell Publishing Inc., 2018
Keywords
blood vessel wall, computer-aided assessment, informatics/image processing, lumen diameter, peripheral vascular, shape fitting
National Category
Clinical Medicine
Identifiers
urn:nbn:se:liu:diva-144016 (URN)10.1002/jum.14439 (DOI)000428445900024 ()29027696 (PubMedID)
Available from: 2018-01-03 Created: 2018-01-03 Last updated: 2018-05-17Bibliographically approved
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