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A-0998 Dynamic MRI at 3T can determine the viability of the lunate bone in patients with Kienböck’s disease
Anders Björkman 1, Sven Månsson 2, Markus F. Mu?ller 3, Martin Johansson 4, Gunilla Mu?ller 3, Departments of 1 Hand Surgery, 2 Medical Radiation Physics, 3 Radiology and 4 Pathology Department of Translational Medicine (1-4), Lund University, Skåne University Hospital, Malmö, Sweden
Thursday, June 14, 2018 · 9:42 a.m. · 04m 23s
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00:00:01
thank you mister chairman and the basic abnormality in cambridge diseases goal to
00:00:06
be a impaired vascular supply to the to the loo nate
00:00:11
and uh a previous studies using contrast enhanced him or i have suggested that a hyper enhancement
00:00:18
yeah it is yeah i'm sharing a viable bottom
00:00:22
whereas a hyper enhancement is suggesting a next multi band
00:00:29
a recent studies uh it has shown that it's possible to assess the best
00:00:34
clarity in the couple buttons using it dynamic contrast announced them right
00:00:39
yeah and in this technique eh a region of interest is created in the call button
00:00:45
yeah and the the signal intensity meaning the contrast in house meant is assess
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in the specific button creating a curve like this where
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the signal intensity is plotted uh to what's time
00:01:02
so the aim of our study was to assess the fusion in the loony but
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i'm in patients with keen books disease using dynamic controls calls them on
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and in additional aim was to assess the or and compare
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profusion with is the pathology uh with focus on bible
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we yeah included faulting consecutive patients treated at the buttons and so green moments when
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uh and we compared the results from the animals cans with nineteen healthy controls
00:01:36
we use a three to slam a scanner and a a a dynamic gallium contrast and protocol
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the scanning time full for the dynamic examination was a six minutes and
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forty seconds so this is in addition to the normal scare
00:01:54
and the result is presented like this you get a curve
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uh where where you can characterise the maximum slow the time to be
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and the maximum signal and the signal it means the contrast enhancement
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and if we compare the the entire material all
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fourteen patients yeah we see that the um
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the patient with keen books disease have a significantly shorter time to peak it meaning that
00:02:23
below the contras foster and they have a higher contrast enhancement compared to the control
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yeah
00:02:32
and um we has seven patients with the richmond stage three b. and six out
00:02:38
of these patients were operate that with the proper tomorrow cop back to me
00:02:42
allowing us to to do histology on the extract the bones
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this is one of the patients and this is the the specimen extract from on the patient
00:02:53
and this is the histology um where we can see a um
00:02:58
on the boulder and also part of the uh do we have more normal but um
00:03:05
uh if we continue down into the centre part of the bone there are areas
00:03:10
with formation of new bone and these areas on mainly quite well last arise
00:03:16
on the other hand the the middle part here good is mainly made up also too hard and fibrous tissue
00:03:23
and next project issue and with very scarce vascular station
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and if we look at the curves on this patient we can see that the next known uh enhancement
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the meaning the most load of the contrast is in fact in the middle
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part here where we have mainly or stay or it and dropped them
00:03:47
so if we compare the the curves we can see that uh we have a a higher signal uh an
00:03:54
in in the entire bone and we have a similar signal in viable bone and in crop backbone
00:04:01
uh so to conclude the dynamic contrast enhanced demo i can diagnose
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a pathological profusion in the lunatic inpatient would kingdoms disease
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however and increased the fusion yeah cannot be used as a mark of
00:04:15
a viable bone it could indicate austin eh the crock pot holes
Conference Program
A-0267 Carpal Alignment: A New Method for Assessment
C.A. Selles 1, L. Ras 1, M.M.J. Walenkamp 1, M. Maas 2, J.C. Goslings 1, N.W.L. Schep 3, 1 Trauma Unit, Department of Surgery, Academic Medical Center, Amsterdam, the Netherlands; 2 Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands; 3 Department of Trauma and Hand Surgery, Maasstad Hospital, Rotterdam, the Netherland
June 14, 2018 · 7:59 a.m.
A-0267 Carpal Alignment: A New Method for Assessment - Q&A
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Mireia Esplugas 1, Guillem Salvà-Coll 2,3, Marc Garcia-Elias 4, Alex Lluch-Bergadà 4,5, Manuel Llusá-Pérez 6, Spain
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A-1076 The scapholunate gap increases with forearm supination. A laboratory study. Q&A
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Sebastian Farr 1, Thierry G. Guitton 2, David Ring 3, Science of Variation Group, 1 Orthopedic Hospital Speising, Vienna, Austria; 2 University Medical Center, Groningen, The Netherlands; 3 Dell Medical School - The University of Texas, Austin, TX, USA
June 14, 2018 · 8:17 a.m.
A-0047 How Reliable is the Radiographic Diagnosis of Mild Madelung Deformity? Q&A
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June 14, 2018 · 8:25 a.m.
A-0206 Comparison of Contact and Non-contact Ultrasound Examination of the Hand - Q&A
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Friederike Mu?nn 1, Andreas Eisenschenk 1,2, Martin Lautenbach 3, Tobias Topp 3, Simon Kim 1, Universitätsmedizin Greifswald, Germany; 2 Unfallkrankenhaus Berlin, Germany; 3 Krankenhaus Waldfriede Berlin, Germany
June 14, 2018 · 8:40 a.m.
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297 views
