Differential diagnosis of pancreatic cancer by single-shot echo-planar imaging diffusion-weighted imaging

Table 1 Diffusion-weighted imaging studies of pancreatic lesions

No.	Ref.	Year of publication	Patient population	MRI unit	Field (T)	TR (ms)	TE (ms)	Max b factor (s/mm2)	Mean age (yr)	FS	Mean size (cm)
1	Muhi et al[21]	2011	Japanese	GE	1.5	8000-10000	73	1000	66.1	Yes	2.6
2	Lemke et al[20]	2009	Germany	Siemens	1.5	1300	60	800	65.1	Yes	2.8
3	Sandrasegaran et al[22]	2011	American	Siemens	1.5	1500	71	800	68.0	Yes	2.0
4	Sandrasegaran et al[23]	2013	American	Siemens	1.5	1500	71	800	66.2	Yes	3.6
5	Kartalis et al[17]	2009	Sweden	Siemens	1.5	4600	77	500	NA	Yes	NA
6	Lee et al[19]	2008	Korean	Siemens	1.5	2100	72	1000	57.4	NA	3.6
7	Ichikawa et al[2]	2007	Japanese	GE	1.5	8000-10000	73	1000	62.0	Yes	2.8
8	Huang et al[16]	2011	Chinese	GE	3.0	5700	55	1000	58.9	Yes	3.4
9	Klauss et al[21]	2011	Germany	Siemens	1.5	1300	60	800	62.8	Yes	3.5

TR: Repetition time; TE: Echo time.

Table 2 Diffusion-weighted imaging studies of pancreatic lesions

No.	Ref.	Benign lesions	Malignant lesions	TP	FP	FN	TN
1	Muhi et al[21]	10	54	52	0	2	10
2	Lemke et al[20]	14	23	17	2	6	12
3	Sandrasegaran et al[22]	45	25	20	26	5	19
4	Sandrasegaran et al[23]	23	13	9	4	4	19
5	Kartalis et al[17]	24	12	11	2	1	22
6a	Lee et al[19]	13	47	34	3	13	10
6b	Lee et al[19]	13	47	41	4	6	9
7	Ichikawa et al[2]	23	26	25	0.3	1	22.7
8	Huang et al[16]	14	37	31.7	1.9	5.3	12.1
9	Klauss et al[18]	9	20	13	0	7	9

TP: True-positive; TN: True-negative; FP: False-positive; FN: False-negative cases.