International Journal of Endocrinology

Research Article

Characteristics and Outcomes of 79 Patients with an Insulinoma: A Nationwide Retrospective Study in Finland

Table 3

The imaging methods used and their sensitivities in the localization of insulinomas in Finland 1980–2010.


Localizing method	1980–1989 ()		1990–1999 ()		2000–2010 ()
Localizing method	Ratio^a	%	Ratio	%	Ratio	%

Abdominal US	1/12	8	1/12	8	4/11	36
Angiography	3/14	21	3/9	33	7/11	64
CT scan	1/17	6	3/17	17	19/37	51
EUS	NA		4/6	67	14/17	82
ERCP	0	0	0/2	0	NA
MRCP	NA		NA		1/1	100
MRI	NA		2/6	33	12/22	55
Octreotide scintigraphy	NA		2/6	33	1/9	11
THPVS	3/4	75	NA		NA
¹⁸F-DOPA-PET/CT	NA		0/1	0	11/19	58
¹⁸F-FDG-PET/CT	NA		NA		0/1	0
Overall detection	7/18	39	10/18	56	42/43	98

^aRatio indicates the proportion of patients in whom the imaging method was successful in localizing the insulinoma. US indicates ultrasonography; CT: computed tomography; EUS: endoscopic ultrasonography; ERCP: endoscopic retrograde cholangiopancreatography; MRCP: magnetic resonance cholangiopancreatography; MRI: magnetic resonance imaging; THPVS: transhepatic portovenous sampling; ¹⁸F-DOPA-PET: ¹⁸F-dihydroxyphenylalanine positron emission tomography; ¹⁸F-FDG-PET: ¹⁸F-fluorodeoxyglucose positron emission tomography; NA: not applicable.