Presence of the posterior pituitary bright spot sign on MRI in the general population: a comparison between 1.5 and 3T MRI and between 2D-T1 spin-echo- and 3D-T1 gradient-echo sequences

Purpose To describe the prevalence of the posterior pituitary bright spot (PPBS) in the general population on 1.5 and 3T MRI examinations and on 2D-T1 spin-echo (SE) and 3D-T1 gradient-echo (GE) sequences. Materials and methods 1017 subjects who received an MRI of the brain for aspecific neurologica...

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Vydáno v:	Pituitary Ročník 21; číslo 4; s. 379 - 383
Hlavní autoři:	Klyn, Verena, Dekeyzer, Sven, Van Eetvelde, Ruth, Roels, Pieter, Vergauwen, Ortwin, Devolder, Pieter, Wiesmann, Martin, Achten, Eric, Nikoubashman, Omid
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York Springer US 01.08.2018 Springer Nature B.V
Témata:	Age Endocrinology Human Physiology Magnetic resonance imaging Medicine Medicine & Public Health Pituitary (posterior) Statistical analysis Pituitary bright spot Posterior pituitary MRI Vasopressin
ISSN:	1386-341X, 1573-7403, 1573-7403
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Abstract	Purpose To describe the prevalence of the posterior pituitary bright spot (PPBS) in the general population on 1.5 and 3T MRI examinations and on 2D-T1 spin-echo (SE) and 3D-T1 gradient-echo (GE) sequences. Materials and methods 1017 subjects who received an MRI of the brain for aspecific neurological complaints were included. MRI was performed on 1.5T in 64.5% and on 3T in 35.5% of subjects. Presence of the PPBS was evaluated on sagittal 2D T1-SE echo images with slice thickness 3 mm in 67.5% and on sagittal 3D T1-GE with slice thickness 0.9 mm in 32.5% of subjects. Results The PPBS was detectable in 95.9% of subjects. After correction for sex and age, no statistically significant difference could be seen concerning PPBS detection between 1.5 and 3T MRI examinations (p = 0.533), nor between 2D T1-SE and 3D T1-GE sequences (p = 0.217). There was a statistically significant association between increasing age and the absence of the PPBS (p < 0.001). The PPBS could not be identified in 6.2% of male subjects, compared to 2.2% of female subjects (p = 0.01). Discussion Absence of the PPBS can be seen in 4.1% of patients undergoing MRI of the brain for non-endocrinological reasons. Neither field-strength nor the use of a thick-sliced 2D T1-SE versus a thin-sliced 3D T1-GE sequence influenced the detectability of the PPBS. There is a statistically significant association between increasing age and male sex and the absence of the PPBS.
AbstractList	Purpose To describe the prevalence of the posterior pituitary bright spot (PPBS) in the general population on 1.5 and 3T MRI examinations and on 2D-T1 spin-echo (SE) and 3D-T1 gradient-echo (GE) sequences. Materials and methods 1017 subjects who received an MRI of the brain for aspecific neurological complaints were included. MRI was performed on 1.5T in 64.5% and on 3T in 35.5% of subjects. Presence of the PPBS was evaluated on sagittal 2D T1-SE echo images with slice thickness 3 mm in 67.5% and on sagittal 3D T1-GE with slice thickness 0.9 mm in 32.5% of subjects. Results The PPBS was detectable in 95.9% of subjects. After correction for sex and age, no statistically significant difference could be seen concerning PPBS detection between 1.5 and 3T MRI examinations (p = 0.533), nor between 2D T1-SE and 3D T1-GE sequences (p = 0.217). There was a statistically significant association between increasing age and the absence of the PPBS (p < 0.001). The PPBS could not be identified in 6.2% of male subjects, compared to 2.2% of female subjects (p = 0.01). Discussion Absence of the PPBS can be seen in 4.1% of patients undergoing MRI of the brain for non-endocrinological reasons. Neither field-strength nor the use of a thick-sliced 2D T1-SE versus a thin-sliced 3D T1-GE sequence influenced the detectability of the PPBS. There is a statistically significant association between increasing age and male sex and the absence of the PPBS. To describe the prevalence of the posterior pituitary bright spot (PPBS) in the general population on 1.5 and 3T MRI examinations and on 2D-T1 spin-echo (SE) and 3D-T1 gradient-echo (GE) sequences.PURPOSETo describe the prevalence of the posterior pituitary bright spot (PPBS) in the general population on 1.5 and 3T MRI examinations and on 2D-T1 spin-echo (SE) and 3D-T1 gradient-echo (GE) sequences.1017 subjects who received an MRI of the brain for aspecific neurological complaints were included. MRI was performed on 1.5T in 64.5% and on 3T in 35.5% of subjects. Presence of the PPBS was evaluated on sagittal 2D T1-SE echo images with slice thickness 3 mm in 67.5% and on sagittal 3D T1-GE with slice thickness 0.9 mm in 32.5% of subjects.MATERIALS AND METHODS1017 subjects who received an MRI of the brain for aspecific neurological complaints were included. MRI was performed on 1.5T in 64.5% and on 3T in 35.5% of subjects. Presence of the PPBS was evaluated on sagittal 2D T1-SE echo images with slice thickness 3 mm in 67.5% and on sagittal 3D T1-GE with slice thickness 0.9 mm in 32.5% of subjects.The PPBS was detectable in 95.9% of subjects. After correction for sex and age, no statistically significant difference could be seen concerning PPBS detection between 1.5 and 3T MRI examinations (p = 0.533), nor between 2D T1-SE and 3D T1-GE sequences (p = 0.217). There was a statistically significant association between increasing age and the absence of the PPBS (p < 0.001). The PPBS could not be identified in 6.2% of male subjects, compared to 2.2% of female subjects (p = 0.01).RESULTSThe PPBS was detectable in 95.9% of subjects. After correction for sex and age, no statistically significant difference could be seen concerning PPBS detection between 1.5 and 3T MRI examinations (p = 0.533), nor between 2D T1-SE and 3D T1-GE sequences (p = 0.217). There was a statistically significant association between increasing age and the absence of the PPBS (p < 0.001). The PPBS could not be identified in 6.2% of male subjects, compared to 2.2% of female subjects (p = 0.01).Absence of the PPBS can be seen in 4.1% of patients undergoing MRI of the brain for non-endocrinological reasons. Neither field-strength nor the use of a thick-sliced 2D T1-SE versus a thin-sliced 3D T1-GE sequence influenced the detectability of the PPBS. There is a statistically significant association between increasing age and male sex and the absence of the PPBS.DISCUSSIONAbsence of the PPBS can be seen in 4.1% of patients undergoing MRI of the brain for non-endocrinological reasons. Neither field-strength nor the use of a thick-sliced 2D T1-SE versus a thin-sliced 3D T1-GE sequence influenced the detectability of the PPBS. There is a statistically significant association between increasing age and male sex and the absence of the PPBS. To describe the prevalence of the posterior pituitary bright spot (PPBS) in the general population on 1.5 and 3T MRI examinations and on 2D-T1 spin-echo (SE) and 3D-T1 gradient-echo (GE) sequences. 1017 subjects who received an MRI of the brain for aspecific neurological complaints were included. MRI was performed on 1.5T in 64.5% and on 3T in 35.5% of subjects. Presence of the PPBS was evaluated on sagittal 2D T1-SE echo images with slice thickness 3 mm in 67.5% and on sagittal 3D T1-GE with slice thickness 0.9 mm in 32.5% of subjects. The PPBS was detectable in 95.9% of subjects. After correction for sex and age, no statistically significant difference could be seen concerning PPBS detection between 1.5 and 3T MRI examinations (p = 0.533), nor between 2D T1-SE and 3D T1-GE sequences (p = 0.217). There was a statistically significant association between increasing age and the absence of the PPBS (p < 0.001). The PPBS could not be identified in 6.2% of male subjects, compared to 2.2% of female subjects (p = 0.01). Absence of the PPBS can be seen in 4.1% of patients undergoing MRI of the brain for non-endocrinological reasons. Neither field-strength nor the use of a thick-sliced 2D T1-SE versus a thin-sliced 3D T1-GE sequence influenced the detectability of the PPBS. There is a statistically significant association between increasing age and male sex and the absence of the PPBS. PurposeTo describe the prevalence of the posterior pituitary bright spot (PPBS) in the general population on 1.5 and 3T MRI examinations and on 2D-T1 spin-echo (SE) and 3D-T1 gradient-echo (GE) sequences.Materials and methods1017 subjects who received an MRI of the brain for aspecific neurological complaints were included. MRI was performed on 1.5T in 64.5% and on 3T in 35.5% of subjects. Presence of the PPBS was evaluated on sagittal 2D T1-SE echo images with slice thickness 3 mm in 67.5% and on sagittal 3D T1-GE with slice thickness 0.9 mm in 32.5% of subjects.ResultsThe PPBS was detectable in 95.9% of subjects. After correction for sex and age, no statistically significant difference could be seen concerning PPBS detection between 1.5 and 3T MRI examinations (p = 0.533), nor between 2D T1-SE and 3D T1-GE sequences (p = 0.217). There was a statistically significant association between increasing age and the absence of the PPBS (p < 0.001). The PPBS could not be identified in 6.2% of male subjects, compared to 2.2% of female subjects (p = 0.01).DiscussionAbsence of the PPBS can be seen in 4.1% of patients undergoing MRI of the brain for non-endocrinological reasons. Neither field-strength nor the use of a thick-sliced 2D T1-SE versus a thin-sliced 3D T1-GE sequence influenced the detectability of the PPBS. There is a statistically significant association between increasing age and male sex and the absence of the PPBS.
Author	Roels, Pieter Devolder, Pieter Achten, Eric Wiesmann, Martin Klyn, Verena Dekeyzer, Sven Van Eetvelde, Ruth Vergauwen, Ortwin Nikoubashman, Omid
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Cites_doi	10.1111/j.0953-8194.2004.01183.x 10.1155/2016/6365830 10.1148/rg.261055045 10.1007/s11604-012-0168-2 10.1148/radiology.165.2.3659370 10.1152/ajpregu.00500.2006 10.1046/j.1365-2265.1996.00555.x 10.1097/00004728-198703000-00004 10.1677/joe.0.1080191
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References	LiuWWangLLiuMLiGPituitary morphology and function in 43 children with central diabetes insipidusInt J Endocrinol201610.1155/2016/6365830276422955013240 BrooksBSFrequency and variation of the posterior pituitary bright signal on MR imagesAJNR Am J Neuroradiol198910594394825055381:STN:280:DyaL1MzntFenug%3D%3D FujisawaIMagnetic resonance imaging of the hypothalamic-neurohypophyseal systemJ Neuroendocrinol20041629730210.1111/j.0953-8194.2004.01183.x150899651:CAS:528:DC%2BD2cXjvF2isL4%3D PeruccaJBoubyNValeixPBankirLSex difference in urine concentration across differing ages, sodium intake, and level of kidney diseaseAm J Physiol Regul Integr Comp Physiol20071699048710.1152/ajpregu.00500.2006 FujisawaIPosterior lobe of the pituitary in diabetes insipidus: MR findingsJ Comput Assist Tomogr19871122122510.1097/00004728-198703000-0000438191181:STN:280:DyaL2s7jvVKnsA%3D%3D TeranoTSeyaATamuraYYoshidaSHirayamaTCharacteristics of the pituitary gland in elderly subjects from magnetic resonance images: relationship to pituitary hormone secretionClin Endocrinol (Oxford)19964527327910.1046/j.1365-2265.1996.00555.x1:STN:280:DyaK2s7gs1yitA%3D%3D CroftonJTDustanHShareLBrooksDPVasopressin secretion in normotensive black and white men and women on normal and low sodium dietsJ Endocrinol198610819119910.1677/joe.0.108019139505261:CAS:528:DyaL28Xmt1Ggsg%3D%3D MarkLPHigh-intensity signals within the posterior pituitary fossa: a study with fat-suppression MR techniquesAJNR AM J Neuroradiol19911252953220585091:STN:280:DyaK3M3otFKhtA%3D%3D OsbornAGOsborn’s brain, imaging, pathology, and anatomy2013Salt Lake CityAmirsys Pub.683687 ColomboNPosterior pituitary gland: appearance on MR images in normal and pathologic statesRadiology1987165248148510.1148/radiology.165.2.365937036593701:STN:280:DyaL1c%2FhslSjtQ%3D%3D Diabetes Data and Statistics (2017) Centers for Disease Control and Prevention Website. https://www.cdc.gov/diabetes/data/index.html. Accessed 05 June 2017 YamamotoAInfluence of age and sex on signal intensities of the posterior lobe of the pituitary gland on T1-weighted images from 3 T MRIJpn J Radiol201331318619210.1007/s11604-012-0168-223268123 BonnevilleFCattinFMarsot-DupuchKDormontDBonnevilleJFChirasJT1 signal hyperintensity in the sellar region: spectrum of findingsRadiographics2006269311310.1148/rg.26105504516418246 LP Mark (885_CR2) 1991; 12 BS Brooks (885_CR8) 1989; 10 I Fujisawa (885_CR4) 1987; 11 JT Crofton (885_CR13) 1986; 108 W Liu (885_CR6) 2016 AG Osborn (885_CR1) 2013 F Bonneville (885_CR3) 2006; 26 885_CR11 I Fujisawa (885_CR5) 2004; 16 N Colombo (885_CR7) 1987; 165 A Yamamoto (885_CR9) 2013; 31 J Perucca (885_CR12) 2007 T Terano (885_CR10) 1996; 45 3659370 - Radiology. 1987 Nov;165(2):481-5 8949564 - Clin Endocrinol (Oxf). 1996 Sep;45(3):273-9 16990487 - Am J Physiol Regul Integr Comp Physiol. 2007 Feb;292(2):R700-5 23268123 - Jpn J Radiol. 2013 Mar;31(3):186-91 27118970 - Int J Endocrinol. 2016;2016:6365830 15089965 - J Neuroendocrinol. 2004 Apr;16(4):297-302 3819118 - J Comput Assist Tomogr. 1987 Mar-Apr;11(2):221-5 3950526 - J Endocrinol. 1986 Feb;108(2):191-9 16418246 - Radiographics. 2006 Jan-Feb;26(1):93-113 2505538 - AJNR Am J Neuroradiol. 1989 Sep-Oct;10(5):943-8 2058509 - AJNR Am J Neuroradiol. 1991 May-Jun;12(3):529-32
References_xml	– reference: PeruccaJBoubyNValeixPBankirLSex difference in urine concentration across differing ages, sodium intake, and level of kidney diseaseAm J Physiol Regul Integr Comp Physiol20071699048710.1152/ajpregu.00500.2006 – reference: FujisawaIPosterior lobe of the pituitary in diabetes insipidus: MR findingsJ Comput Assist Tomogr19871122122510.1097/00004728-198703000-0000438191181:STN:280:DyaL2s7jvVKnsA%3D%3D – reference: ColomboNPosterior pituitary gland: appearance on MR images in normal and pathologic statesRadiology1987165248148510.1148/radiology.165.2.365937036593701:STN:280:DyaL1c%2FhslSjtQ%3D%3D – reference: MarkLPHigh-intensity signals within the posterior pituitary fossa: a study with fat-suppression MR techniquesAJNR AM J Neuroradiol19911252953220585091:STN:280:DyaK3M3otFKhtA%3D%3D – reference: BonnevilleFCattinFMarsot-DupuchKDormontDBonnevilleJFChirasJT1 signal hyperintensity in the sellar region: spectrum of findingsRadiographics2006269311310.1148/rg.26105504516418246 – reference: LiuWWangLLiuMLiGPituitary morphology and function in 43 children with central diabetes insipidusInt J Endocrinol201610.1155/2016/6365830276422955013240 – reference: BrooksBSFrequency and variation of the posterior pituitary bright signal on MR imagesAJNR Am J Neuroradiol198910594394825055381:STN:280:DyaL1MzntFenug%3D%3D – reference: Diabetes Data and Statistics (2017) Centers for Disease Control and Prevention Website. https://www.cdc.gov/diabetes/data/index.html. Accessed 05 June 2017 – reference: CroftonJTDustanHShareLBrooksDPVasopressin secretion in normotensive black and white men and women on normal and low sodium dietsJ Endocrinol198610819119910.1677/joe.0.108019139505261:CAS:528:DyaL28Xmt1Ggsg%3D%3D – reference: YamamotoAInfluence of age and sex on signal intensities of the posterior lobe of the pituitary gland on T1-weighted images from 3 T MRIJpn J Radiol201331318619210.1007/s11604-012-0168-223268123 – reference: TeranoTSeyaATamuraYYoshidaSHirayamaTCharacteristics of the pituitary gland in elderly subjects from magnetic resonance images: relationship to pituitary hormone secretionClin Endocrinol (Oxford)19964527327910.1046/j.1365-2265.1996.00555.x1:STN:280:DyaK2s7gs1yitA%3D%3D – reference: FujisawaIMagnetic resonance imaging of the hypothalamic-neurohypophyseal systemJ Neuroendocrinol20041629730210.1111/j.0953-8194.2004.01183.x150899651:CAS:528:DC%2BD2cXjvF2isL4%3D – reference: OsbornAGOsborn’s brain, imaging, pathology, and anatomy2013Salt Lake CityAmirsys Pub.683687 – ident: 885_CR11 – volume: 12 start-page: 529 year: 1991 ident: 885_CR2 publication-title: AJNR AM J Neuroradiol – volume: 16 start-page: 297 year: 2004 ident: 885_CR5 publication-title: J Neuroendocrinol doi: 10.1111/j.0953-8194.2004.01183.x – year: 2016 ident: 885_CR6 publication-title: Int J Endocrinol doi: 10.1155/2016/6365830 – volume: 26 start-page: 93 year: 2006 ident: 885_CR3 publication-title: Radiographics doi: 10.1148/rg.261055045 – start-page: 683 volume-title: Osborn’s brain, imaging, pathology, and anatomy year: 2013 ident: 885_CR1 – volume: 31 start-page: 186 issue: 3 year: 2013 ident: 885_CR9 publication-title: Jpn J Radiol doi: 10.1007/s11604-012-0168-2 – volume: 165 start-page: 481 issue: 2 year: 1987 ident: 885_CR7 publication-title: Radiology doi: 10.1148/radiology.165.2.3659370 – year: 2007 ident: 885_CR12 publication-title: Am J Physiol Regul Integr Comp Physiol doi: 10.1152/ajpregu.00500.2006 – volume: 45 start-page: 273 year: 1996 ident: 885_CR10 publication-title: Clin Endocrinol (Oxford) doi: 10.1046/j.1365-2265.1996.00555.x – volume: 11 start-page: 221 year: 1987 ident: 885_CR4 publication-title: J Comput Assist Tomogr doi: 10.1097/00004728-198703000-00004 – volume: 108 start-page: 191 year: 1986 ident: 885_CR13 publication-title: J Endocrinol doi: 10.1677/joe.0.1080191 – volume: 10 start-page: 943 issue: 5 year: 1989 ident: 885_CR8 publication-title: AJNR Am J Neuroradiol – reference: 15089965 - J Neuroendocrinol. 2004 Apr;16(4):297-302 – reference: 3950526 - J Endocrinol. 1986 Feb;108(2):191-9 – reference: 16418246 - Radiographics. 2006 Jan-Feb;26(1):93-113 – reference: 3659370 - Radiology. 1987 Nov;165(2):481-5 – reference: 27118970 - Int J Endocrinol. 2016;2016:6365830 – reference: 2058509 - AJNR Am J Neuroradiol. 1991 May-Jun;12(3):529-32 – reference: 8949564 - Clin Endocrinol (Oxf). 1996 Sep;45(3):273-9 – reference: 16990487 - Am J Physiol Regul Integr Comp Physiol. 2007 Feb;292(2):R700-5 – reference: 23268123 - Jpn J Radiol. 2013 Mar;31(3):186-91 – reference: 2505538 - AJNR Am J Neuroradiol. 1989 Sep-Oct;10(5):943-8 – reference: 3819118 - J Comput Assist Tomogr. 1987 Mar-Apr;11(2):221-5
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Snippet	Purpose To describe the prevalence of the posterior pituitary bright spot (PPBS) in the general population on 1.5 and 3T MRI examinations and on 2D-T1... To describe the prevalence of the posterior pituitary bright spot (PPBS) in the general population on 1.5 and 3T MRI examinations and on 2D-T1 spin-echo (SE)... PurposeTo describe the prevalence of the posterior pituitary bright spot (PPBS) in the general population on 1.5 and 3T MRI examinations and on 2D-T1 spin-echo...
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SubjectTerms	Age Endocrinology Human Physiology Magnetic resonance imaging Medicine Medicine & Public Health Pituitary (posterior) Statistical analysis
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Title	Presence of the posterior pituitary bright spot sign on MRI in the general population: a comparison between 1.5 and 3T MRI and between 2D-T1 spin-echo- and 3D-T1 gradient-echo sequences
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