On the appearance of bile in clinical MR cholangiopancreatography
(2002) In Acta Radiologica 43(4). p.401-410- Abstract
- Purpose: To study the appearance of bile in clinical MR cholangiopancreatography (MRCP) with special reference to its chemical and physical properties. Material and Methods: Gallbladder bile was collected during surgery from 38 patients and studied with respect to chemical constituents. The relaxation rates 1/T1 and 1/T2 of bile were also determined in vitro . In 16 of these 38 patients, abdominal imaging was performed using MRCP as well as T1-weighted GE sequences. Results: For 9 of the 13 chemical parameters studied, a positive significant correlation with 1/T1 as well as 1/T2 was found. The median relaxation rates 1/T1 and 1/T2 were 0.76 and 1.48 s(-1) , respectively. The corresponding ranges were 0.38-3.13 s(-1) and 0.70-5.75 s(-1) ,... (More)
- Purpose: To study the appearance of bile in clinical MR cholangiopancreatography (MRCP) with special reference to its chemical and physical properties. Material and Methods: Gallbladder bile was collected during surgery from 38 patients and studied with respect to chemical constituents. The relaxation rates 1/T1 and 1/T2 of bile were also determined in vitro . In 16 of these 38 patients, abdominal imaging was performed using MRCP as well as T1-weighted GE sequences. Results: For 9 of the 13 chemical parameters studied, a positive significant correlation with 1/T1 as well as 1/T2 was found. The median relaxation rates 1/T1 and 1/T2 were 0.76 and 1.48 s(-1) , respectively. The corresponding ranges were 0.38-3.13 s(-1) and 0.70-5.75 s(-1) , respectively. On the MRCP images a few patients showed gallbladder of poor visibility due to low signal-to-noise ratio. This coincided with a high relaxation rate 1/T2 of bile. On the T1-weighted GE sequences a few patients showed hyperintense gallbladder relative to liver, coinciding with high relaxation rates 1/T1 of bile. Conclusion: Bile was found to show a large interindividual variation with respect to relaxation rates 1/T1 and 1/T2. The relaxation rates increased with increasing amounts of substances in the bile. For some patients (11%) MRCP imaging is unsuccessful due to high relaxation rate of bile. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/892679
- author
- Hakansson, K ; Christoffersson, JO ; Leander, Peter LU ; Ekberg, Olle LU and Hakansson, HO
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- technology, MR cholangiopancretography, bile, gallbladder
- in
- Acta Radiologica
- volume
- 43
- issue
- 4
- pages
- 401 - 410
- publisher
- SAGE Publications
- external identifiers
-
- wos:000177948700011
- pmid:12225483
- scopus:0036628579
- ISSN
- 1600-0455
- language
- English
- LU publication?
- yes
- id
- 500c5a23-137a-4b2e-a048-108cb34dcdb3 (old id 892679)
- date added to LUP
- 2016-04-01 16:49:51
- date last changed
- 2022-01-28 22:28:34
@article{500c5a23-137a-4b2e-a048-108cb34dcdb3,
abstract = {{Purpose: To study the appearance of bile in clinical MR cholangiopancreatography (MRCP) with special reference to its chemical and physical properties. Material and Methods: Gallbladder bile was collected during surgery from 38 patients and studied with respect to chemical constituents. The relaxation rates 1/T1 and 1/T2 of bile were also determined in vitro . In 16 of these 38 patients, abdominal imaging was performed using MRCP as well as T1-weighted GE sequences. Results: For 9 of the 13 chemical parameters studied, a positive significant correlation with 1/T1 as well as 1/T2 was found. The median relaxation rates 1/T1 and 1/T2 were 0.76 and 1.48 s(-1) , respectively. The corresponding ranges were 0.38-3.13 s(-1) and 0.70-5.75 s(-1) , respectively. On the MRCP images a few patients showed gallbladder of poor visibility due to low signal-to-noise ratio. This coincided with a high relaxation rate 1/T2 of bile. On the T1-weighted GE sequences a few patients showed hyperintense gallbladder relative to liver, coinciding with high relaxation rates 1/T1 of bile. Conclusion: Bile was found to show a large interindividual variation with respect to relaxation rates 1/T1 and 1/T2. The relaxation rates increased with increasing amounts of substances in the bile. For some patients (11%) MRCP imaging is unsuccessful due to high relaxation rate of bile.}},
author = {{Hakansson, K and Christoffersson, JO and Leander, Peter and Ekberg, Olle and Hakansson, HO}},
issn = {{1600-0455}},
keywords = {{technology; MR cholangiopancretography; bile; gallbladder}},
language = {{eng}},
number = {{4}},
pages = {{401--410}},
publisher = {{SAGE Publications}},
series = {{Acta Radiologica}},
title = {{On the appearance of bile in clinical MR cholangiopancreatography}},
volume = {{43}},
year = {{2002}},
}