1998
DOI: 10.1118/1.598393
|View full text |Cite
|
Sign up to set email alerts
|

Automatic registration of pelvic computed tomography data and magnetic resonance scans including a full circle method for quantitative accuracy evaluation

Abstract: The purpose of this study is to develop a method for registration of CT and MR scans of the pelvis with minimal user interaction and to obtain a means for objective quantification of the registration accuracy of clinical data without markers. CT scans were registered with proton density MR scans using chamfer matching on automatically segmented bone. A fixed threshold was used to segment CT, while morphological filters were used to segment MR. The method was tested with transverse and coronal MR scans of 18 pa… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

0
37
0

Year Published

2001
2001
2017
2017

Publication Types

Select...
5
3

Relationship

1
7

Authors

Journals

citations
Cited by 51 publications
(37 citation statements)
references
References 38 publications
0
37
0
Order By: Relevance
“…These surfaces were used in previous works showing accurate registration results [8]. Unfortunately correspondent surfaces are not easily recognisable in both CT and MR images due to the different informational contained in the two diagnostic modalities and an accurate extraction would require an intensive manual editing of the contours depending on the segmentation algorithm used.…”
Section: Accuracy Of the Registration Algorithmmentioning
confidence: 99%
“…These surfaces were used in previous works showing accurate registration results [8]. Unfortunately correspondent surfaces are not easily recognisable in both CT and MR images due to the different informational contained in the two diagnostic modalities and an accurate extraction would require an intensive manual editing of the contours depending on the segmentation algorithm used.…”
Section: Accuracy Of the Registration Algorithmmentioning
confidence: 99%
“…Metallic implants can distort the radiofrequency and magnetic fields leading to severe artefacts possibly preventing the use of MR imaging altogether. The difference in composition of bone and soft-tissue causes a relative translation of 1 mm known as chemical shift (van Herk et al 1998). Despite its shortcomings, the superb imaging characteristics and absence of reported short-term or long-term maleficent effects (Webb 1988) have secured the position of MR imaging in the clinical field.…”
Section: Imaging Methodsmentioning
confidence: 99%
“…Maximum intensity projection and other DRR-like algorithms have been used in context of MR-based treatment plans (Yin et al 1998, Ramsey & Oliver 1998. One alternative for treatment verification of MR-based planning is the registration of the MR image set with CT, and then the use of CT-based DRRs for verification image matching (van Herk et al 1998).…”
Section: Verification Visualization For Radiotherapymentioning
confidence: 99%
See 1 more Smart Citation
“…A 3D automatic chamfer matching algorithm was used to match specific bony regions for each site, the spine for the lung cancer case and the pelvic bone for the prostate cancer case. 127 In both cases the volume contours from the planning CT scan were copied to the repeat CT scan, and then re-defined (or re-drawn) to reflect the change in anatomy of the repeat CT scan.…”
Section: 2b Case Studiesmentioning
confidence: 99%