Detection rates, sensitivity, and specificity of multislice spiral computed tomography, 1.5T and 3.0T magnetic resonance imaging in anal fistula diagnosis

doi:10.4240/wjgs.v18.i4.115864

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World Journal of Gastrointestinal Surgery

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1948-9366

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Gastrointest Surg. Apr 27, 2026; 18(4): 115864
Published online Apr 27, 2026. doi: 10.4240/wjgs.v18.i4.115864

Table 3 Comparison of diagnostic and surgical outcomes between multislice spiral computed tomography, 1.5T magnetic resonance imaging, and 3.0T magnetic resonance imaging

Methods	Items	Preoperative diagnosis				Detection rate	Surgical outcome	K
Methods	Items	True positive	False positive	False negative	True negative	Detection rate	Surgical outcome	K
MSCT	Internal opening	23	5	2	13	76.67 (23/30)	27	0.681
	Primary fistula	24	5	2	14	77.42 (24/31)	27	0.711
	Abscess	8	1	1	3	80.00 (8/10)	8	0.845
1.5T MRI	Internal opening	39	7	4	22	78.00 (39/50)	46	0.694
	Primary fistula	40	7	2	21	81.63 (40/49)	47	0.726
	Abscess	14	2	0	8	87.50 (14/16)	14	0.851
3.0T MRI	Internal opening	52	2	1	25	94.54 (52/55)^a	52	0.911^a
	Primary fistula	54	1	1	24	96.43 (54/56)^a	55	0.926^a
	Abscess	17	1	0	24	94.45 (17/18)	17	0.906

^aP < 0.05 vs multislice spiral computed tomography and 1.5T magnetic resonance imaging.

MSCT: Multislice spiral computed tomography; MRI: Magnetic resonance imaging.

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Citation: Tang JJ, Wang TH, Jia XF. Detection rates, sensitivity, and specificity of multislice spiral computed tomography, 1.5T and 3.0T magnetic resonance imaging in anal fistula diagnosis. World J Gastrointest Surg 2026; 18(4): 115864
URL: https://www.wjgnet.com/1948-9366/full/v18/i4/115864.htm
DOI: https://dx.doi.org/10.4240/wjgs.v18.i4.115864

Tang JJ, Wang TH, Jia XF. Detection rates, sensitivity, and specificity of multislice spiral computed tomography, 1.5T and 3.0T magnetic resonance imaging in anal fistula diagnosis. World J Gastrointest Surg 2026; 18(4): 115864 [DOI: 10.4240/wjgs.v18.i4.115864]

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