Comparison of preoperative evaluation of malignant low-level biliary obstruction using plain magnetic resonance and coronal liver acquisition with volume acceleration technique alone and in combination

Table 2 Diagnostic accuracy of plain MR images (including MRCP), coronal LAVA images (including axial delayed phase), and plain MR with coronal LAVA images

Diseases	Number of cases	Positioning diagnosis			Qualitative diagnosis
Diseases	Number of cases	Plain MR	Coronal LAVA	Plain MR with coronal LAVA	Plain MR	Coronal LAVA	Plain MR with coronal LAVA
Pancreatic adenocarcinoma	14	13	12	13	12	13	13
Distal common bile duct carcinoma	12	11	11	11	9	11	11
Ampullary carcinoma	10	8	9	9	7	9	10
Periampullary duodenal carcinoma	5	4	5	5	4	5	5
Total	41	36	37	38	32	38	39
Diagnostic accuracy		87.8 %	90.2 %	92.7 %	78.0 %	92.7 %	95.1 %

MR magnetic resonance, MRCP magnetic resonance cholangiopancreatography, LAVA liver acquisition with volume acceleration

ISSN: 2047-783X