Abstract #4001
Evaluation of b-value distributions for monoexponential model of prostate cancer diffusion-weighted imaging using b values up to 2000 s/mm 2 : a repeatability study on region of interest level
Harri Merisaari 1 , Jussi Toivonen 2 , Marko Pesola 3 , Pekka Taimen 4 , Peter J Bostrm 5 , Tapio Pahikkala 2 , Hannu J Aronen 3 , and Ivan Jambor 3
1
Turku PET Centre, University of Turku,
Turku, Finland,
2
Department
of Information Technology, University of Turku, Turku,
Finland,
3
Department
of Diagnostic Radiology, University of Turku, Turku,
Finland,
4
Department
of Pathology, Turku University Hospital, Turku, Finland,
5
Department
of Urology, Turku University Hospital, Turku, Finland
We elevated the effect of 4083 different b-value
combinations on the prostate cancer detection, Gleason
score prediction, and repeatability of monoexponential
model for diffusion weighted imaging (DWI) using
b-values up to 2000 s/mm
2
. Fifty patients
with histologically confirmed PCa underwent two repeated
3T MRI examinations before radical prostatectomy. DWI
was performed using 12 equally distributed b-values.
B-value distributions containing only b values in end of
the b-value range (~1500 to 2000 s/mm
2
)
demonstrated the lowest diagnostic performance and
repeatability while the rest of b values distributions
had similar performance and repeatability.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Click here for more information on becoming a member.
