Magnetic Resonance Cholangiopancreatography in 3 Tesla: 2D MRCP versus 3D MRCP in Diagnostic Evaluation with Special Reference to Different Acquisition and Reconstruction Planes
Purpose: Magnetic resonance cholangiopancreatography (MRCP) is an established technique for the evaluation of intra- and extrahepatic bile ducts in patients with known or suspected hepatobiliary disease. However, the ideal acquisition and reconstruction plane for optimal bile duct evaluation with 3D...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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UMass Chan Medical School
2015-03-01
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| Series: | Journal of Global Radiology |
| Subjects: | |
| Online Access: | http://escholarship.umassmed.edu/jgr/vol1/iss1/3 |
| _version_ | 1828079211704745984 |
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| author | Vikram Patil Nayana Shabadi Sudha Das Sudha Das SMC Shetty Kamal Sen |
| author_facet | Vikram Patil Nayana Shabadi Sudha Das Sudha Das SMC Shetty Kamal Sen |
| author_sort | Vikram Patil |
| collection | DOAJ |
| description | Purpose: Magnetic resonance cholangiopancreatography (MRCP) is an established technique for the evaluation of intra- and extrahepatic bile ducts in patients with known or suspected hepatobiliary disease. However, the ideal acquisition and reconstruction plane for optimal bile duct evaluation with 3D technique has not been evaluated.The purpose of our study was to compare different acquisition and reconstruction planes of 3D MRCP for bile duct assessment. Methods: 51 consecutive adult patients suspected to have pancreatico-biliary disease were examined with 3 Tesla (Philips 3 T Ingenia) system both a multi thin slice (3D) and a breath-hold (Single Shot) MRCP technique were performed. In the multi thin slice technique both source images and maximum intensity projections were examined. Two radiologists blinded to clinical information viewed both MRCP techniques independantly. Measure of correlation between each of the techniques and the inter observer agreement were computed. Coronal and axial MIP were reconstructed based on each dataset (resulting in two coronal and two axial MIP, respectively) and assessed the MIP, regarding visualization of bile ducts and image quality.Results were compared (Wilcoxon test). Intra- and interobserver variability were calculated (kappa-statistic). Results: In case of coronal data acquisition, visualization of bile duct segments was significantly better on coronal reconstructed MIP images as compared to axial reconstructed MIP (p < 0.05). Regarding visualization, coronal MIP of the coronal acquisition were equal to coronal MIP of the axial acquisition (p > 0.05). Image quality of coronal and axial datasets did not differ significantly. Obstruction due to tumor was shown in 30% of patients, and calculi in the common bile duct were shown also in 30% of patients employing the 3D MRCP technique. Obstruction due to tumor and calculi were shown in 30% and 21% of patients, respectively, using the SS 2D MRCP technique. Sensitivity and specificity in distinguishing calculi in the common bile duct by 3D MRCP and SS MRCP were 100%, 100%, 70% and 100% respectively. Conclusions: </strong>Although the 3D MRCP multislice technique is more time consuming than the SS MRCP breath-hold technique at a 3 Tesla (Philips 3 T Ingenia) system it is advisable to use thin slice 3D MRCP in order not to misdiagnose calculi in the common bile duct.The results of our study suggest that for visualization and evaluation of intra- and extrahepatic bile duct segments reconstructed images in coronal orientation are preferable. |
| first_indexed | 2024-04-11T02:57:36Z |
| format | Article |
| id | doaj.art-ab3814f442b7492dbbe0f897d58d4b89 |
| institution | Directory Open Access Journal |
| issn | 2372-8418 |
| language | English |
| last_indexed | 2024-04-11T02:57:36Z |
| publishDate | 2015-03-01 |
| publisher | UMass Chan Medical School |
| record_format | Article |
| series | Journal of Global Radiology |
| spelling | doaj.art-ab3814f442b7492dbbe0f897d58d4b892023-01-02T14:40:11ZengUMass Chan Medical SchoolJournal of Global Radiology2372-84182015-03-011110.7191/jgr.2015.1003Magnetic Resonance Cholangiopancreatography in 3 Tesla: 2D MRCP versus 3D MRCP in Diagnostic Evaluation with Special Reference to Different Acquisition and Reconstruction PlanesVikram Patil0Nayana Shabadi1Sudha Das2Sudha Das3SMC Shetty4Kamal Sen5JSS Medical CollegeJSS Medical CollegeJSS Medical CollegeJSS Medical CollegeJSS Medical CollegeJSS Medical CollegePurpose: Magnetic resonance cholangiopancreatography (MRCP) is an established technique for the evaluation of intra- and extrahepatic bile ducts in patients with known or suspected hepatobiliary disease. However, the ideal acquisition and reconstruction plane for optimal bile duct evaluation with 3D technique has not been evaluated.The purpose of our study was to compare different acquisition and reconstruction planes of 3D MRCP for bile duct assessment. Methods: 51 consecutive adult patients suspected to have pancreatico-biliary disease were examined with 3 Tesla (Philips 3 T Ingenia) system both a multi thin slice (3D) and a breath-hold (Single Shot) MRCP technique were performed. In the multi thin slice technique both source images and maximum intensity projections were examined. Two radiologists blinded to clinical information viewed both MRCP techniques independantly. Measure of correlation between each of the techniques and the inter observer agreement were computed. Coronal and axial MIP were reconstructed based on each dataset (resulting in two coronal and two axial MIP, respectively) and assessed the MIP, regarding visualization of bile ducts and image quality.Results were compared (Wilcoxon test). Intra- and interobserver variability were calculated (kappa-statistic). Results: In case of coronal data acquisition, visualization of bile duct segments was significantly better on coronal reconstructed MIP images as compared to axial reconstructed MIP (p < 0.05). Regarding visualization, coronal MIP of the coronal acquisition were equal to coronal MIP of the axial acquisition (p > 0.05). Image quality of coronal and axial datasets did not differ significantly. Obstruction due to tumor was shown in 30% of patients, and calculi in the common bile duct were shown also in 30% of patients employing the 3D MRCP technique. Obstruction due to tumor and calculi were shown in 30% and 21% of patients, respectively, using the SS 2D MRCP technique. Sensitivity and specificity in distinguishing calculi in the common bile duct by 3D MRCP and SS MRCP were 100%, 100%, 70% and 100% respectively. Conclusions: </strong>Although the 3D MRCP multislice technique is more time consuming than the SS MRCP breath-hold technique at a 3 Tesla (Philips 3 T Ingenia) system it is advisable to use thin slice 3D MRCP in order not to misdiagnose calculi in the common bile duct.The results of our study suggest that for visualization and evaluation of intra- and extrahepatic bile duct segments reconstructed images in coronal orientation are preferable.http://escholarship.umassmed.edu/jgr/vol1/iss1/3MRCP2D3DMagnetic resonance cholangiopancreatographyBile ductsCommon hepatic duct |
| spellingShingle | Vikram Patil Nayana Shabadi Sudha Das Sudha Das SMC Shetty Kamal Sen Magnetic Resonance Cholangiopancreatography in 3 Tesla: 2D MRCP versus 3D MRCP in Diagnostic Evaluation with Special Reference to Different Acquisition and Reconstruction Planes Journal of Global Radiology MRCP 2D 3D Magnetic resonance cholangiopancreatography Bile ducts Common hepatic duct |
| title | Magnetic Resonance Cholangiopancreatography in 3 Tesla: 2D MRCP versus 3D MRCP in Diagnostic Evaluation with Special Reference to Different Acquisition and Reconstruction Planes |
| title_full | Magnetic Resonance Cholangiopancreatography in 3 Tesla: 2D MRCP versus 3D MRCP in Diagnostic Evaluation with Special Reference to Different Acquisition and Reconstruction Planes |
| title_fullStr | Magnetic Resonance Cholangiopancreatography in 3 Tesla: 2D MRCP versus 3D MRCP in Diagnostic Evaluation with Special Reference to Different Acquisition and Reconstruction Planes |
| title_full_unstemmed | Magnetic Resonance Cholangiopancreatography in 3 Tesla: 2D MRCP versus 3D MRCP in Diagnostic Evaluation with Special Reference to Different Acquisition and Reconstruction Planes |
| title_short | Magnetic Resonance Cholangiopancreatography in 3 Tesla: 2D MRCP versus 3D MRCP in Diagnostic Evaluation with Special Reference to Different Acquisition and Reconstruction Planes |
| title_sort | magnetic resonance cholangiopancreatography in 3 tesla 2d mrcp versus 3d mrcp in diagnostic evaluation with special reference to different acquisition and reconstruction planes |
| topic | MRCP 2D 3D Magnetic resonance cholangiopancreatography Bile ducts Common hepatic duct |
| url | http://escholarship.umassmed.edu/jgr/vol1/iss1/3 |
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