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Mark IT, Welker K, Erickson D, Johnson DR, Bathla G, Messina S, Farnsworth PJ, Van Gompel J. 7T MRI for Cushing Disease: A Single-Institution Experience and Literature Review. AJNR Am J Neuroradiol 2024; 45:971-976. [PMID: 38365424 DOI: 10.3174/ajnr.a8209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
BACKGROUND AND PURPOSE Cushing disease is typically caused by a pituitary adenoma that frequently is small and challenging to detect on conventional MR imaging. High-field-strength 7T MR imaging can leverage increased SNR and contrast-to-noise ratios compared with lower-field-strength MR imaging to help identify small pituitary lesions. We aimed to describe our institutional experience with 7T MR imaging in patients with Cushing disease and perform a review of the literature. MATERIALS AND METHODS We performed a retrospective analysis of 7T MR imaging findings in patients with pathology-proved Cushing disease from a single institution, followed by a review of the literature on 7T MR imaging for Cushing disease. RESULTS Our institutional experience identified Cushing adenomas in 10/13 (76.9%) patients on 7T; however, only 5/13 (38.5%) lesions were discrete. Overall, the imaging protocols used were heterogeneous in terms of contrast dose as well as type of postcontrast T1-weighted sequences (dynamic, 2D versus 3D, and type of 3D sequence). From our institutional data, specific postgadolinium T1-weighted sequences were helpful in identifying a surgical lesion as follows: dynamic contrast-enhanced, 2/7 (28.6%); 2D FSE, 4/8 (50%); 3D sampling perfection with application-optimized contrasts by using different flip angle evolution (SPACE), 5/6 (83.3%); and 3D MPRAGE, 8/11 (72.7%). The literature review identified Cushing adenomas in 31/33 (93.9%) patients on 7T. CONCLUSIONS 7T MR imaging for pituitary lesion localization in Cushing disease is a new technique with imaging protocols that vary widely. Further comparative research is needed to identify the optimal imaging technique as well as assess the benefit of 7T over lower-field-strength MR imaging.
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Affiliation(s)
- Ian T Mark
- From the Department of Radiology (I.T.M., K.W., D.R.J., G.B., S.M., P.J.F.), Mayo Clinic, Rochester, Minnesota
| | - Kirk Welker
- From the Department of Radiology (I.T.M., K.W., D.R.J., G.B., S.M., P.J.F.), Mayo Clinic, Rochester, Minnesota
| | - Dana Erickson
- Department of Endocrinology (D.E.), Mayo Clinic, Rochester, Minnesota
| | - Derek R Johnson
- From the Department of Radiology (I.T.M., K.W., D.R.J., G.B., S.M., P.J.F.), Mayo Clinic, Rochester, Minnesota
| | - Girish Bathla
- From the Department of Radiology (I.T.M., K.W., D.R.J., G.B., S.M., P.J.F.), Mayo Clinic, Rochester, Minnesota
| | - Steven Messina
- From the Department of Radiology (I.T.M., K.W., D.R.J., G.B., S.M., P.J.F.), Mayo Clinic, Rochester, Minnesota
| | - Paul J Farnsworth
- From the Department of Radiology (I.T.M., K.W., D.R.J., G.B., S.M., P.J.F.), Mayo Clinic, Rochester, Minnesota
| | - Jamie Van Gompel
- Department of Neurosurgery (J.V.G.), Mayo Clinic, Rochester, Minnesota
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Korbonits M, Blair JC, Boguslawska A, Ayuk J, Davies JH, Druce MR, Evanson J, Flanagan D, Glynn N, Higham CE, Jacques TS, Sinha S, Simmons I, Thorp N, Swords FM, Storr HL, Spoudeas HA. Consensus guideline for the diagnosis and management of pituitary adenomas in childhood and adolescence: Part 1, general recommendations. Nat Rev Endocrinol 2024; 20:278-289. [PMID: 38336897 DOI: 10.1038/s41574-023-00948-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/19/2023] [Indexed: 02/12/2024]
Abstract
Tumours of the anterior part of the pituitary gland represent just 1% of all childhood (aged <15 years) intracranial neoplasms, yet they can confer high morbidity and little evidence and guidance is in place for their management. Between 2014 and 2022, a multidisciplinary expert group systematically developed the first comprehensive clinical practice consensus guideline for children and young people under the age 19 years (hereafter referred to as CYP) presenting with a suspected pituitary adenoma to inform specialist care and improve health outcomes. Through robust literature searches and a Delphi consensus exercise with an international Delphi consensus panel of experts, the available scientific evidence and expert opinions were consolidated into 74 recommendations. Part 1 of this consensus guideline includes 17 pragmatic management recommendations related to clinical care, neuroimaging, visual assessment, histopathology, genetics, pituitary surgery and radiotherapy. While in many aspects the care for CYP is similar to that of adults, key differences exist, particularly in aetiology and presentation. CYP with suspected pituitary adenomas require careful clinical examination, appropriate hormonal work-up, dedicated pituitary imaging and visual assessment. Consideration should be given to the potential for syndromic disease and genetic assessment. Multidisciplinary discussion at both the local and national levels can be key for management. Surgery should be performed in specialist centres. The collection of outcome data on novel modalities of medical treatment, surgical intervention and radiotherapy is essential for optimal future treatment.
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Affiliation(s)
- Márta Korbonits
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
| | | | - Anna Boguslawska
- Department of Endocrinology, Jagiellonian University Medical College, Krakow, Poland
| | - John Ayuk
- University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Justin H Davies
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Maralyn R Druce
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Jane Evanson
- Neuroradiology, Barts Health NHS Trust, London, UK
| | | | - Nigel Glynn
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | | | - Thomas S Jacques
- Great Ormond Street Institute of Child Health, University College London, London, UK
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Saurabh Sinha
- Sheffield Children's and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Ian Simmons
- The Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Nicky Thorp
- The Christie NHS Foundation Trust, Manchester, UK
| | | | - Helen L Storr
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Helen A Spoudeas
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- University College London Hospitals NHS Foundation Trust, London, UK
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Park H, Nam YK, Kim HS, Park JE, Lee DH, Lee J, Kim S, Kim YH. Deep learning-based image reconstruction improves radiologic evaluation of pituitary axis and cavernous sinus invasion in pituitary adenoma. Eur J Radiol 2023; 158:110647. [PMID: 36527773 DOI: 10.1016/j.ejrad.2022.110647] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 10/11/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022]
Abstract
PURPOSE To compare performance of 1-mm deep learning reconstruction (DLR) with 3-mm routine MRI imaging for the delineation of pituitary axis and identification of cavernous sinus invasion for pituitary macroadenoma. METHOD This retrospective study included 104 patients (59.4 ± 13.1 years; 46 women) who underwent an MRI protocol including 1-mm deep learning-reconstructed and 3-mm routine images for evaluating pituitary adenoma between August 2019 and October 2020. Five readers (24, 9, 2 years, and <1 year of experience) assessed the delineation of pituitary axis (gland and stalk) and the presence of cavernous sinus invasion for using a pairwise design. The signal-to-noise ratio (SNR) was measured. Diagnostic performance as well as image preference data were analysed and compared according to the readers' experience using the McNemar test. RESULTS For delineation of normal pituitary axis, all readers preferred thin 1-mm DLR MRI over 3-mm MRI (overall superiority, 55.8 %, P <.001), with this preference being greater in the less experienced readers (92.3 % vs. 55.8 % [expert], P <.001). The readers showed higher diagnostic performance for cavernous sinus invasion on 1-mm (AUC, 0.91 and 0.92) than on 3-mm imaging (AUC, 0.87 and 0.88). The SNR of the 1-mm DLR was 1.21-fold higher than that of the routine 3-mm imaging. CONCLUSION Deep learning reconstruction-based 1-mm imaging demonstrates improved image quality and better delineation of microstructure in the sellar fossa and is preferred by both radiologists and non-radiologist physicians, especially in less experienced readers.
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Affiliation(s)
- Hyeryeong Park
- University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, Republic of Korea
| | | | - Ho Sung Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, Republic of Korea.
| | - Ji Eun Park
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, Republic of Korea.
| | - Da Hyun Lee
- Department of Radiology, Ajou University Hospital, Republic of Korea
| | | | - Seonok Kim
- Department of Clinical Epidemiology and Biostatistics, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Young-Hoon Kim
- Department of Neurosurgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, Republic of Korea
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Eisenhut F, Schmidt MA, Buchfelder M, Doerfler A, Schlaffer SM. Improved Detection of Cavernous Sinus Invasion of Pituitary Macroadenomas with Ultra-High-Field 7 T MRI. LIFE (BASEL, SWITZERLAND) 2022; 13:life13010049. [PMID: 36675998 PMCID: PMC9867165 DOI: 10.3390/life13010049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022]
Abstract
To compare 7 T magnetic resonance imaging (MRI) of pituitary macroadenomas (PMA) with standard MRI and intraoperative findings regarding tumor detection, localization, size, and extension. Patients with suspected pituitary adenoma underwent pre-operative 1.5 T or 3 T and 7 T MRI; 14 patients with a PMA were included. A qualitative (lesion detection, location, cavernous sinus infiltration) and quantitative (lesion size, depth of cavernous sinus infiltration) analysis of 1.5 T, 3 T and 7 T MRI was performed and compared with intraoperative findings. Both 1.5/3 T and 7 T MRI enabled the detection of all PMAs; lesion size determination was equal. 7 T MRI enables more precise assessments of cavernous sinus infiltration of PMA (ncorrect 7T = 78.6%, ncorrect 1.5/3T = 64.3%). Ultra-high-field MRI is a reliable imaging modality for evaluation of PMAs providing exact information on lesion location and size. 7 T MRI yielded more accurate information on cavernous sinus infiltration with better agreement with intraoperative findings than standard MRI.
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Affiliation(s)
- Felix Eisenhut
- Department of Neuroradiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
- Correspondence:
| | - Manuel Alexander Schmidt
- Department of Neuroradiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
| | - Michael Buchfelder
- Department of Neurosurgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
| | - Arnd Doerfler
- Department of Neuroradiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
| | - Sven-Martin Schlaffer
- Department of Neurosurgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
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Zhang JJY, Lim JX, Lee KS, Kirollos RW, Rao JP. Impact of Intraoperative Magnetic Resonance Imaging on Short-Term and Long-Term Outcomes After Transsphenoidal Resection of Pituitary Adenoma: A Systematic Review and Meta-Analysis. World Neurosurg 2022; 167:184-194.e16. [PMID: 35977684 DOI: 10.1016/j.wneu.2022.08.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 10/31/2022]
Abstract
BACKGROUND Intraoperative magnetic resonance imaging (iMRI) allows for greater tumor visualization and extent of resection. It is increasingly used in transsphenoidal surgeries but its role is not yet established. OBJECTIVE We aimed to clarify the usefulness of iMRI in transsphenoidal surgery using direct statistical comparisons, with additional subgroup and regression analyses to investigate which patients benefit the most from iMRI use. METHODS Systematic searches of PubMed, Embase, and Cochrane Central were undertaken from database inception to May 2020 for published studies reporting the outcomes of iMRI use in transsphenoidal resection of pituitary adenoma. RESULTS Thirty-three studies reporting 2106 transsphenoidal surgeries in 2099 patients were included. Of these surgeries, 1487 (70.6%) were for nonfunctioning pituitary adenomas, whereas 619 (29.4%) were for functioning adenomas. Pooled gross total resection (GTR) was 47.6% without iMRI and 66.8% with iMRI (risk ratio [RR], 1.32; P < 0.001). Subgroup and meta-regression analyses demonstrated comparable increases in GTR between microscopic (RR, 1.35; P < 0.001) and endoscopic (RR, 1.31; P < 0.001) approaches as well as functioning and nonfunctioning adenomas (P = 0.584). The pooled rate of hypersecretion normalization was 73.0% within 3 months and 51.7% beyond 3 months postoperatively. The pooled rate of short-term and long-term improvement in visual symptoms was 96.5% and 84.9%, respectively. The incidence of postoperative surgical complications was low. The pooled reoperation rate was 3.8% across 1106 patients. CONCLUSIONS The use of iMRI as an adjunct significantly increases GTR for both microscopic and endoscopic resection of pituitary adenomas, with comparable benefits for both functioning and nonfunctioning adenomas. Satisfactory endocrinologic and visual outcomes were achieved.
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Affiliation(s)
- John J Y Zhang
- Department of Neurosurgery, National Neuroscience Institute, Singapore.
| | - Jia Xu Lim
- Department of Neurosurgery, National Neuroscience Institute, Singapore
| | - Keng Siang Lee
- Bristol Medical School, Faculty of Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Ramez W Kirollos
- Department of Neurosurgery, National Neuroscience Institute, Singapore; Duke-NUS Medical School, Singapore
| | - Jai Prashanth Rao
- Department of Neurosurgery, National Neuroscience Institute, Singapore; Duke-NUS Medical School, Singapore
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Fajardo-Montañana C, Villar R, Gómez-Ansón B, Brea B, Mosqueira AJ, Molla E, Enseñat J, Riesgo P, Cardona-Arboniés J, Hernando O. Recommendations for the diagnosis and radiological follow-up of pituitary neuroendocrine tumours. ENDOCRINOL DIAB NUTR 2022; 69:744-761. [PMID: 36428207 DOI: 10.1016/j.endien.2021.10.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/01/2021] [Indexed: 06/16/2023]
Abstract
Pituitary neuroendocrine tumours (PitNETs) constitute a heterogeneous group of tumours with a gradually increasing incidence, partly accounted for by more sensitive imaging techniques and more extensive experience in neuroradiology in this regard. Although most PitNETs are indolent, some exhibit aggressive behaviour, and recurrence may be seen after surgical removal. The changes introduced in the WHO classification in 2017 and terminological debates in relation to neuroendocrine tumours warrant an update of the guidelines for the diagnosis, preoperative and postoperative management, and follow-up of response to treatment of PitNETs. This multidisciplinary document, an initiative of the Neuroendocrinology area of the Sociedad Española de Endocrinología y Nutrición [Spanish Society of Endocrinology and Nutrition] (SEEN), focuses on neuroimaging studies for the diagnosis, prognosis and follow-up of PitNETs. The basic requirements and elements that should be covered by magnetic resonance imaging are described, and a minimum radiology report to aid clinicians in treatment decision-making is proposed. This work supplements the consensus between the Neuroendocrinology area of the SEEN and the Sociedad Española de Anatomía Patológica [Spanish Society of Pathology] (SEAP) for the pathological study of PitNETs.
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Affiliation(s)
| | - Rocío Villar
- Departamento de Endocrinología, Complejo Hospitalario Universitario de Santiago, Santiago de Compostela, A Coruña, Spain
| | - Beatriz Gómez-Ansón
- Neurorradiología, Departamento de Radiodiagnóstico, Hospital Universitari Sant Pau, Barcelona, Spain
| | - Beatriz Brea
- Departamento de Radiología, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Antonio Jesús Mosqueira
- Departamento de Radiología, Complejo Hospitalario Universitario de Santiago, Santiago de Compostela, A Coruña, Spain
| | - Enrique Molla
- Departamento de Radiología, Hospital Universitario de la Ribera, Alcira, Valencia, Spain
| | - Joaquín Enseñat
- Departamento de Neurocirugía, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Pedro Riesgo
- Departamento de Neurocirugía, Hospital Universitario de la Ribera, Alcira, Valencia, Spain
| | - Jorge Cardona-Arboniés
- Departamento de Medicina Nuclear, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Ovidio Hernando
- Departamento de Oncología Radioterápica, Centro Integral Oncológico Clara Campal, Madrid, Spain
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Gruppetta M. A current perspective of pituitary adenoma MRI characteristics: a review. Expert Rev Endocrinol Metab 2022; 17:499-511. [PMID: 36373167 DOI: 10.1080/17446651.2022.2144230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022]
Abstract
INTRODUCTION MR imaging is an essential and fundamental tool in the diagnosis, management, and follow-up of patients with pituitary adenomas (PAs). Recent advances have continued to enhance the usefulness of this imaging modality. AREAS COVERED This article focuses on signal intensity patterns of PAs and associated clinical characteristics, vertical extension patterns, and cavernous sinus invasion with a special focus on the clinical implications that arise. A search using Medline and Google Scholar was conducted using different combinations of relevant keywords, giving preference to recent publications. EXPERT OPINION A higher proportion of GH-secreting PAs are hypointense on T2 weighted images compared to other tumor subtypes. Hypointense tumors are generally smaller compared to hyperintense ones, and among the GH-secreting subgroup, a better response to somatostatin analogue treatment was noted together with an association for a densely granulated pattern. Nonfunctional PAs show a predilection to extend upwards while GH-secreting PAs and prolactinomas show a predominantly inferior extension growth pattern. Further studies to better understand the mechanisms responsible for this behavior are anticipated. Further development, refining and validation of predictive scoring systems for tumor behavior might be useful adjuncts in the management of patients with PAs.
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Affiliation(s)
- Mark Gruppetta
- Department of Medicine, Faculty of Medicine and Surgery, University of Malta, Mater Dei Hospital, Msida, Malta
- Department of Medicine, Neuroendocrine Clinic, Mater Dei Hospital, Msida, Malta
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Wu Y, Cai Y, Rui W, Tang Y, Yang Z, He M, Ye H, Wang Y, Zhao Y, Ma Z, Yao Z. Contrast-enhanced 3D-T2-weighted SPACE sequence for MRI detection and localization of adrenocorticotropin (ACTH)-secreting pituitary microadenomas. Clin Endocrinol (Oxf) 2022; 96:578-588. [PMID: 34323314 DOI: 10.1111/cen.14574] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/21/2021] [Accepted: 07/25/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Cushing disease is a potentially fatal endocrine disorder caused by adrenocorticotropin (ACTH)-secreting microadenomas in the pituitary gland. Accurate detection and localization of the adenomas is the key to clinical treatment. This study analysed the value of contrast-enhanced Sampling Perfection with Application-optimized Contrasts using different flip angle Evolutions (SPACE) sequence in magnetic resonance imaging (MRI) assessment of ACTH-secreting pituitary microadenomas. DESIGN AND PATIENTS We carried out a retrospective study in which 45 patients with ACTH-secreting pituitary microadenomas were enrolled. Dynamic contrast-enhanced (DCE) coronal T1-SE sequence was performed. A contrast-enhanced coronal SPACE sequence was added immediately after DCE MRI finished. Two independent observers assessed the tumour existence and location, then the results were compared with surgical findings. RESULTS Twenty-four lesions (53.3%) were detected by the DCE T1-SE sequence alone, while 35 lesions (80.0%) were detected with the addition of contrast-enhanced SPACE sequence. The sensitivity (58.5% vs. 85.3%; p < .05) and best diagnostic accuracy (62.0% vs. 84.4%; p < .05) were significantly better for addition with SPACE sequence than DCE-SE images alone in detection of ACTH-secreting pituitary microadenomas. For lesions <5 mm, the detected numbers were 4 (16.6%) versus 10 (27.8%) by DCE T1-SE sequence and combined DCE T1-SE with SPACE sequence. CONCLUSIONS A combination of contrast-enhanced SPACE with DCE T1-SE sequence could improve the detection of ACTH-secreting pituitary microadenomas. Contrast-enhanced SPACE sequence could be a supplementary sequence for imaging of ACTH-secreting pituitary adenomas when T1-SE sequence provides negative or equivocal findings.
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Affiliation(s)
- Yue Wu
- Department of Radiology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yixin Cai
- Department of Neurosurgery, National Center for Neurological Disorders (NCND), Shanghai Pituitary Tumor Center, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wenting Rui
- Department of Radiology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ying Tang
- Department of Radiology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Zhong Yang
- Department of Radiology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Min He
- Department of Endocrinology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hongying Ye
- Department of Endocrinology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yongfei Wang
- Department of Neurosurgery, National Center for Neurological Disorders (NCND), Shanghai Pituitary Tumor Center, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yao Zhao
- Department of Neurosurgery, National Center for Neurological Disorders (NCND), Shanghai Pituitary Tumor Center, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Zengyi Ma
- Department of Neurosurgery, National Center for Neurological Disorders (NCND), Shanghai Pituitary Tumor Center, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Zhenwei Yao
- Department of Radiology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
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Ultra-High-Field 7 T Magnetic Resonance Imaging Including Dynamic and Static Contrast-Enhanced T1-Weighted Imaging Improves Detection of Secreting Pituitary Microadenomas. Invest Radiol 2022; 57:567-574. [PMID: 35925660 DOI: 10.1097/rli.0000000000000872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE A prospective preoperative evaluation of 7 T ultra-high-field magnetic resonance imaging (MRI) in patients with suspected pituitary microadenomas for both adenoma detection and intrasellar localization compared with 3 T MRI was carried out. MATERIALS AND METHODS Patients underwent prospective preoperative standardized 3 and 7 T MRI. A distinct qualitative (lesion detection, intrasellar lesion location) and quantitative (lesion diameters, T1/T2 signal intensity ratio of the lesion to normal pituitary gland tissue) analysis was performed, along with an evaluation of image quality (IQ) regarding overall IQ, anatomical parameters, and artifacts; the findings of the qualitative analysis were compared with intraoperative findings and endocrinological outcomes. RESULTS Sixteen patients (mean age, 43 ± 16 years; 13 women) with pituitary microadenomas were included. Using 7 T MRI allowed the detection of 15 microadenomas-3 more than 3 T MRI. In addition, 7 T MRI allowed more precise lesion localization with 93.75% (15/16) agreement with intraoperative findings, compared with 75% (12/16) agreement using 3 T MRI. Lesion diameters showed no significant difference between 3 and 7 T MRI. T1 and T2 signal intensity ratio between microadenomas and normal pituitary gland tissue were higher in 7 T MRI than in 3 T MRI. The overall IQ and the IQ of each anatomical parameter of 7 T MRI were rated higher than those of 3 T MRI. No significant differences in susceptibility or head motion artifacts were observed between 3 and 7 T MRI; however, 7 T MRI was more susceptible to pulsation artifacts. CONCLUSION Ultra-high-field MRI surpasses 3 T MRI in pituitary microadenoma detection and enables more precise delineation with higher correlation with intraoperative findings. Thus, 7 T sellar imaging is a promising option-especially in previously magnetic resonance-negative patients with endocrinologically confirmed hormone oversecretion-and helps reduce the need for invasive diagnostics.
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Uetani H, Nakaura T, Kitajima M, Morita K, Haraoka K, Shinojima N, Tateishi M, Inoue T, Sasao A, Mukasa A, Azuma M, Ikeda O, Yamashita Y, Hirai T. Hybrid deep-learning-based denoising method for compressed sensing in pituitary MRI: comparison with the conventional wavelet-based denoising method. Eur Radiol 2022; 32:4527-4536. [PMID: 35169896 DOI: 10.1007/s00330-022-08552-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 10/10/2021] [Accepted: 11/07/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVES This study aimed to evaluate the efficacy of a combined wavelet and deep-learning reconstruction (DLR) method for under-sampled pituitary MRI. METHODS This retrospective study included 28 consecutive patients who underwent under-sampled pituitary T2-weighted images (T2WI). Images were reconstructed using either the conventional wavelet denoising method (wavelet method) or the wavelet and DLR methods combined (hybrid DLR method) at five denoising levels. The signal-to-noise ratio (SNR) of the CSF, hypothalamic, and pituitary images and the contrast between structures were compared between the two image types. Noise quality, contrast, sharpness, artifacts, and overall image quality were evaluated by two board-certified radiologists. The quantitative and the qualitative analyses were performed with robust two-way repeated analyses of variance. RESULTS Using the hybrid DLR method, the SNR of the CSF progressively increased as denoising levels increased. By contrast, with the wavelet method, the SNR of the CSF, hypothalamus, and pituitary did not increase at higher denoising levels. There was a significant main effect of denoising methods (p < 0.001) and denoising levels (p < 0.001), and an interaction between denoising methods and denoising levels (p < 0.001). For all five qualitative scores, there was a significant main effect of denoising methods (p < 0.001) and an interaction between denoising methods and denoising levels (p < 0.001). CONCLUSIONS The hybrid DLR method can provide higher image quality for T2WI of the pituitary with compressed sensing (CS) than the wavelet method alone, especially at higher denoising levels. KEY POINTS • The signal-to-noise ratios of cerebrospinal fluid progressively increased with the hybrid DLR method, with an increase in the denoising level for cerebrospinal fluid in pituitary T2WI with CS. • The signal-to-noise ratios of cerebrospinal fluid using the conventional wavelet method did not increase at higher denoising levels. • All qualitative scores of hybrid deep-learning reconstructions at all denoising levels were higher than those for the wavelet denoising method.
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Affiliation(s)
- Hiroyuki Uetani
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan
| | - Takeshi Nakaura
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan.
| | - Mika Kitajima
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan
| | - Kosuke Morita
- Department of Radiology, Kumamoto University Hospital, Honjo 1-1-1, Kumamoto, Japan
| | - Kentaro Haraoka
- Sales Engineer Group, MRI Sales Department, Canon Medical Systems Corporation, 70-1, Yanagi-cho, Saiwai-ku, Kawasaki-shi, Kanagawa, 212-0015, Japan
| | - Naoki Shinojima
- Department of Neurosurgery, Faculty of Life Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto, Japan
| | - Machiko Tateishi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan
| | - Taihei Inoue
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan
| | - Akira Sasao
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan
| | - Akitake Mukasa
- Department of Neurosurgery, Faculty of Life Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto, Japan
| | - Minako Azuma
- Department of Radiology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan
| | - Osamu Ikeda
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan
| | - Yasuyuki Yamashita
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan
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Fajardo-Montañana C, Villar R, Gómez-Ansón B, Brea B, Mosqueira AJ, Molla E, Enseñat J, Riesgo P, Cardona-Arboniés J, Hernando O. Recomendaciones sobre el diagnóstico y seguimiento radiológico de los tumores neuroendocrinos hipofisarios. ENDOCRINOL DIAB NUTR 2021. [DOI: 10.1016/j.endinu.2021.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Michali-Stolarska M, Tukiendorf A, Zacharzewska-Gondek A, Jacków-Nowicka J, Chrzanowska J, Trybek G, Bladowska J. MRI Protocol for Pituitary Assessment in Children with Growth or Puberty Disorders-Is Gadolinium Contrast Administration Actually Needed? J Clin Med 2021; 10:jcm10194598. [PMID: 34640616 PMCID: PMC8509364 DOI: 10.3390/jcm10194598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 09/28/2021] [Accepted: 10/01/2021] [Indexed: 11/23/2022] Open
Abstract
The aim of this study was to assess the diagnostic value of non-contrast pituitary MRI in children with growth or puberty disorders (GPDs) and to determine the criteria indicating the necessity to perform post-contrast examination. A retrospective study included re-analysis of 567 contrast-enhanced pituitary MRIs of children treated in a tertiary reference center. Two sets of sequences were created from each MRI examination: Set 1, including common sequences without contrast administration, and Set 2, which included common pre- and post-contrast sequences (conventional MRI examination). The differences in the visibility of pituitary lesions between pairs of sets were statistically analyzed. The overall frequency of Rathke’s cleft cysts was 11.6%, ectopic posterior pituitary 3.5%, and microadenomas 0.9%. Lesions visible without contrast administration accounted for 85% of cases. Lesions not visible before and diagnosed only after contrast injection accounted for only 0.18% of all patients. Statistical analysis showed the advantage of the antero-posterior (AP) pituitary dimension over the other criteria in determining the appropriateness of using contrast in pituitary MRIs. The AP dimension was the most significant factor in logistic regression analysis: OR = 2.23, 95% CI, 1.35–3.71, p-value = 0.002, and in ROC analysis: AUC: 72.9% with a cut-off value of 7.5 mm, with sensitivity/specificity rates of 69.2%/73.5%. In most cases, the use of gadolinium-based contrast agent (GBCA) in pituitary MRI in children with GPD is unnecessary. The advantages of GBCA omission include shortening the time of MRI examination and of general anesthesia; saving time for other examinations, thus increasing the availability of MRI for waiting children; and acceleration in their further clinical management.
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Affiliation(s)
- Marta Michali-Stolarska
- Department of General and Interventional Radiology and Neuroradiology, Wroclaw Medical University, 50-367 Wroclaw, Poland; (M.M.-S.); (J.J.-N.); (J.B.)
| | - Andrzej Tukiendorf
- Department of Public Health, Wroclaw Medical University, 50-367 Wroclaw, Poland;
| | - Anna Zacharzewska-Gondek
- Department of General and Interventional Radiology and Neuroradiology, Wroclaw Medical University, 50-367 Wroclaw, Poland; (M.M.-S.); (J.J.-N.); (J.B.)
- Correspondence: ; Tel.: +48-(71)-733-1668; Fax: +48-(71)-734-1669
| | - Jagoda Jacków-Nowicka
- Department of General and Interventional Radiology and Neuroradiology, Wroclaw Medical University, 50-367 Wroclaw, Poland; (M.M.-S.); (J.J.-N.); (J.B.)
| | - Joanna Chrzanowska
- Department of Developmental Endocrinology and Diabetology, Wroclaw Medical University, 50-367 Wroclaw, Poland;
| | - Grzegorz Trybek
- Department of Oral Surgery, Pomeranian Medical University in Szczecin, 70-204 Szczecin, Poland;
| | - Joanna Bladowska
- Department of General and Interventional Radiology and Neuroradiology, Wroclaw Medical University, 50-367 Wroclaw, Poland; (M.M.-S.); (J.J.-N.); (J.B.)
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Tjörnstrand A, Casar-Borota O, Heurling K, Schöll M, Gjertsson P, Ragnarsson O, Filipsson Nyström H. Pre- and postoperative 68 Ga-DOTATOC positron emission tomography for hormone-secreting pituitary neuroendocrine tumours. Clin Endocrinol (Oxf) 2021; 94:956-967. [PMID: 33484167 DOI: 10.1111/cen.14425] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/04/2021] [Accepted: 01/18/2021] [Indexed: 01/19/2023]
Abstract
OBJECTIVES Somatostatin receptors (SSTRs) are potential targets for detecting pituitary neuroendocrine tumours (PitNETs) that can be visualized effectively with 68 Ga-labelled PET tracers. With this study, we have evaluated the diagnostic properties of such a tracer, 68 Ga-DOTATOC, in patients with hormone-producing PitNETs before and after surgery. DESIGN/METHODS This prospective case-control study presents preoperative positron emission tomography (PET) and histopathological data in 18 patients with somatotroph (n = 8), corticotroph (n = 7) and thyrotroph (n = 3) PitNETs. Patients were scanned pre- and postoperatively with 68 Ga-DOTATOC PET. For the postoperative part of the study, patients with gonadotroph tumours (n = 7) were also included. Fifteen pituitary healthy controls underwent the same protocol once. The maximum standard uptake value (SUVmax ) was analysed in manually outlined regions around the tumour in patients and around the pituitary gland in controls. specimens were collected during surgery in subjects for assessment of adenohypophyseal tumour cell type and the SSTR expression. RESULTS Thyrotroph tumours showed higher uptake (median SUVmax 41.1; IQR 37.4-60.0) and corticotroph tumours lower uptake (SUVmax 6.8; 2.6-9.3) than normal pituitary gland (SUVmax 13.8; 12.1-15.5). The uptake in somatotroph tumours (SUVmax 15.9; 11.6-19.7) was similar to the uptake in the pituitary gland. There was a strong correlation between SUVmax and SSTR2 expression (r = .75 (P < .01)). In the postoperative evaluation, PET was able to correlate tracer uptake with biochemical cure and noncure in patients with an abnormal postoperative magnetic resonance image and a preoperative tumour uptake SUVmax > 13.8. CONCLUSIONS 68 Ga-DOTATOC PET can be used to detect thyrotroph tumours in the pre- and postoperative imaging assessment. Corticotroph tumours had a significantly lower uptake compared to the pituitary gland but without a distinct increased tumour uptake the clinical postoperative value is limited.
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Affiliation(s)
- Axel Tjörnstrand
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
- Department of Radiology, Sahlgrenska University Hospital, Göteborg, Sweden
| | - Olivera Casar-Borota
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
- Department of Clinical Pathology, Uppsala University Hospital, Uppsala, Sweden
| | - Kerstin Heurling
- Wallenberg Centre for Molecular and Translational Medicine, Sahlgrenska University Hospital, Göteborg, Sweden
- Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, University of Gothenburg, Göteborg, Sweden
- Antaros Medical, Mölndal, Sweden
| | - Michael Schöll
- Wallenberg Centre for Molecular and Translational Medicine, Sahlgrenska University Hospital, Göteborg, Sweden
- Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, University of Gothenburg, Göteborg, Sweden
- Dementia Research Centre, Queen Square Institute of Neurology, University College London, London, UK
| | - Peter Gjertsson
- Department of Clinical Physiology, Sahlgrenska University Hospital, Göteborg, Sweden
- Department of Molecular and Clinical Medicine, Institute of Medicine Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Oskar Ragnarsson
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
- Department of Endocrinology, Sahlgrenska University Hospital, Göteborg, Sweden
| | - Helena Filipsson Nyström
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, Sahlgrenska University Hospital, Göteborg, Sweden
- Department of Endocrinology, Sahlgrenska University Hospital, Göteborg, Sweden
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14
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Bestepe N, Ozdemir D, Polat B, Topaloglu O, Algin O, Bal E, Ersoy R, Cakir B. The role of bilateral inferior petrosal sinus sampling in determining the preoperative localization of ACTH-secreting pituitary microadenomas in Cushing's disease: Experience of a tertiary center. Clin Neurol Neurosurg 2021; 207:106724. [PMID: 34102422 DOI: 10.1016/j.clineuro.2021.106724] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Bilateral inferior petrosal sinus sampling (BIPSS) is an important procedure in the diagnostic work-up of Cushing's syndrome (CS). In this study, we investigated the diagnostic performance of BIPSS in detecting the source of adrenocorticotropic hormone (ACTH) secretion in Cushing's disease (CD) without radiological evidence. METHODS Thirty-five consecutive patients who underwent BIPSS due to ACTH-dependent CS between 2010 and 2019 in our clinic and subsequently underwent transsphenoidal surgery were included. The indication for BIPSS was biochemically proven ACTH-dependent CS but normal or ≤6 mm pituitary lesion in pituitary magnetic resonance imaging (MRI). Corticotropin releasing hormone (CRH) stimulation was applied to all patients during the BIPSS procedure. BIPSS data, MRI results, pathological findings, and follow-up results were analyzed. The diagnostic performance of BIPSS was calculated. RESULTS A total of 35 patients, 6 (17%) males and 29 (83%) females, were included in the study. Pituitary MRI was normal in 12 (34.3%) and revealed lesions ≤ 6 mm in 23 (65.7%) patients. BIPSS lateralized the right side in 13 (37.1%) and left side in 18 (51.4%) patients, while no lateralization was observed in the remaining 4 (11.5%) patients. BIPSS showed lateralization in the same direction with pituitary adenoma in 21 (60%) patients before CRH injection and in 29 (83%) patients after CRH injection (p = 0.034). The sensitivity of the BIPSS procedure was 88%. Accurate localization of the pituitary lesion was more frequent when based on BIPSS results than on MRI (83% vs. 51%, P = 0.005). CONCLUSION BIPSS appears to be a valuable and safe diagnostic tool in patients who are diagnosed with CD biochemically but do not have clear radiological evidence of ACTH-producing lesion.
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Affiliation(s)
- Nagihan Bestepe
- Ankara City Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey.
| | - Didem Ozdemir
- Yildirim Beyazit University Faculty of Medicine, Department of Endocrinology and Metabolism, Ankara, Turkey.
| | - Burcak Polat
- Yildirim Beyazit University Faculty of Medicine, Department of Endocrinology and Metabolism, Ankara, Turkey.
| | - Oya Topaloglu
- Yildirim Beyazit University Faculty of Medicine, Department of Endocrinology and Metabolism, Ankara, Turkey.
| | - Oktay Algin
- Yildirim Beyazit University Faculty of Medicine, Department of Radiology, Ankara, Turkey.
| | - Ercan Bal
- Yildirim Beyazit University Faculty of Medicine, Department of Neurosurgery, Ankara, Turkey.
| | - Reyhan Ersoy
- Yildirim Beyazit University Faculty of Medicine, Department of Endocrinology and Metabolism, Ankara, Turkey.
| | - Bekir Cakir
- Yildirim Beyazit University Faculty of Medicine, Department of Endocrinology and Metabolism, Ankara, Turkey.
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Kurosaki M, Sakamoto M, Kambe A, Ogura T. Up-To-Date Magnetic Resonance Imaging Findings for the Diagnosis of Hypothalamic and Pituitary Tumors. Yonago Acta Med 2021; 64:155-161. [PMID: 34025189 DOI: 10.33160/yam.2021.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 03/22/2021] [Indexed: 11/05/2022]
Abstract
Magnetic resonance imaging (MRI) is the preferred imaging technique for the sellar and parasellar regions. In this review article, we report our clinical experience with MRI for hypothalamic and pituitary lesions, such as pituitary adenomas, craniopharyngiomas, Rathke cleft cysts, germinoma, and hypophysitis with reference to the histopathological findings through a review of the literature. Our previous study indicated that three dimensional-spoiled gradient echo sequence is a more suitable sequence for evaluating sellar lesions on postcontrast T1 weighted image (WI). This image demonstrates the defined relationship between the tumor and its surroundings, such as the normal pituitary gland, cavernous sinus, and optic pathway. We demonstrated the characteristic MRI findings of functioning pituitary adenoma. In growth hormone-producing adenoma, signal intensity on T2WI is important to differentiate densely from sparsely granulated somatotroph adenomas. In prolactin-producing pituitary adenomas, distinct hypointense areas in early phase on T2WI, possibly owning to diffuse hemorrhage, indicate pronounced regressions of invasive macroprolactinomas during cabergoline therapy. The two histopathological subtypes, adamantinomatous and squamous papillary craniopharyngioma, differ in genesis. Calcified tumors are mostly adamantinomatous type. On MRI, these lesions have a heterogenous appearance with a solid portion and cystic components. The solid portions and cyst wall enhance heterogeneously. Although cyst fluid of Rathke cleft cysts show variable intensities on MRI, intracystic waxy nodule can be hypointense on T2WI. The enhancing cyst wall may contain the squamous metaplasia. Cystic lesions of the sellar and parasellar areas may be difficult to differentiate on a clinical, imaging, or even histopathological basis.
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Affiliation(s)
- Masamichi Kurosaki
- Division of Neurosurgery, Department of Brain and Neurosciences, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8504, Japan
| | - Makoto Sakamoto
- Division of Neurosurgery, Department of Brain and Neurosciences, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8504, Japan
| | - Atsushi Kambe
- Division of Neurosurgery, Department of Brain and Neurosciences, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8504, Japan
| | - Takafumi Ogura
- Division of Neurosurgery, Department of Brain and Neurosciences, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8504, Japan
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Zhang J, Yin T, Ding C, Gu J, Zhu B, Li J, Chen Z, Wang S. The "Double-Peak" Pattern of Pituitary Adenoma Intrasellar Pressure and Its Effects on the Microvascular Structure. World Neurosurg 2021; 151:e137-e145. [PMID: 33831613 DOI: 10.1016/j.wneu.2021.03.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 03/29/2021] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The purpose of the present study was to investigate the relationship between the intrasellar pressure (ISP) and the microvascular structure of pituitary adenomas. METHODS We retrospectively analyzed the ISP in 66 patients with pituitary adenomas. The corresponding microvascular structure was obtained using immunohistochemistry and analyzed for its correlation with the ISP. RESULTS The average ISP was 25.89 ± 8.27 mm Hg, and the ISP was not related to the size of the adenoma (Pearson correlation coefficient, 0.103; P = 0.415). The ISPs of adenomas with different Knosp grades were significantly different (P < 0.05). From grade 0 to grade 4, at first, the ISP increased with the Knosp grade and reached the first peak at grade 2. It then decreased at grade 3 and increased again at grade 4, showing a "double-peak" pattern. The minimal diameter and perimeter of the microvessels and the vessel-covered area percentage were positively related to the ISP. When these parameters were compared among the adenomas of different Knosp grades, they also exhibited a "double-peak" pattern. CONCLUSIONS In the present study, we found that with the increase in pituitary adenoma size and invasion of the surrounding tissues, the ISP of pituitary adenomas showed a "double-peak" pattern. The ISP and certain parameters of the microvascular structure are related, because the microvasculature adaptively changes its structure in response to the changing ISP to ensure a sufficient blood supply to the adenoma. The specific mechanism of this phenomenon requires further study.
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Affiliation(s)
- Jianhe Zhang
- Department of Neurosurgery, 900th Hospital, Fuzong Clinical College of Fujian Medical University, Fuzhou, People's Republic of China; Department of Neurosurgery, The Affiliated Hospital of Putian University, Putian, People's Republic of China
| | - Tengkun Yin
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, People's Republic of China
| | - Chenyu Ding
- The First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| | - Jianjun Gu
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhenzhou, People's Republic of China
| | - Bin Zhu
- Department of Neurosurgery, 900th Hospital, Fuzong Clinical College of Fujian Medical University, Fuzhou, People's Republic of China
| | - Jun Li
- Department of Neurosurgery, 900th Hospital, Fuzong Clinical College of Fujian Medical University, Fuzhou, People's Republic of China
| | - Ziqian Chen
- Medical Image Center, 900th Hospital, Fuzong Clinical College of Fujian Medical University, Fuzhou, People's Republic of China
| | - Shousen Wang
- Department of Neurosurgery, 900th Hospital, Fuzong Clinical College of Fujian Medical University, Fuzhou, People's Republic of China.
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17
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Tortora F, Negro A, Briganti F, Del Basso De Caro ML, Cavallo LM, Solari D, Somma T, Brunese L, Caranci F. Pituitary magnetic resonance imaging vs. bilateral inferior petrosal sinus sampling: comparison between non-invasive and invasive diagnostic techniques for Cushing's disease-a narrative review. Gland Surg 2020; 9:2260-2268. [PMID: 33447578 DOI: 10.21037/gs-20-654] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cushing's syndrome is a pathological clinical condition caused by an exposure of elevated cortisol levels over a long period of time. It is therefore essential to establish what the cause of hypercortisolism is. In most cases (about 80%) the pathological process is due to adrenocorticotropic hormone (ACTH), while in a minor part of the cases (about 20%) the cause is represented by a pathology of the adrenal glands and therefore not related to ACTH. Most patients with ACTH dependent Cushing's syndrome have a pituitary microadenoma; in the remaining cases (30%), the high level of cortisol is linked to an ectopic secretion of ACTH. Surgical removal of the pituitary adenoma represents the treatment of choice in Cushing's disease (CD) patients; it is therefore necessary to identify and precisely locate the pituitary tumour responsible for the secretion of ACTH. Adequate diagnostic information is very often, even with magnetic resonance imaging (MRI), and in these cases we rely on bilateral inferior petrosal sinuses sampling (BIPSS). This procedure is considered the gold standard method for the diagnosis, but like any other diagnostic method it is not free from erroneous results such as false positives or false negatives.
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Affiliation(s)
- Fabio Tortora
- Unit of Interventional Neuroradiology, Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy
| | - Alberto Negro
- Neuroradiology Unit, Ospedale del Mare, Naples, Italy
| | - Francesco Briganti
- Unit of Interventional Neuroradiology, Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy
| | | | - Luigi Maria Cavallo
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, "Federico II" University, Naples, Italy
| | - Domenico Solari
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, "Federico II" University, Naples, Italy
| | - Teresa Somma
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, "Federico II" University, Naples, Italy
| | - Luca Brunese
- Department of Medicine and Health Sciences "V. Tiberio", University of Molise, Campobasso, Italy
| | - Ferdinando Caranci
- Department of Precision Medicine, School of Medicine "Luigi Vanvitelli", University of Campania, Naples, Italy
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Tanji M, Kataoka H, Kikuchi M, Sakamoto T, Kuwata F, Matsunaga M, Nakagawa T, Mineharu Y, Arakawa Y, Yoshida K, Miyamoto S. Impact of Intraoperative 3-Tesla MRI on Endonasal Endoscopic Pituitary Adenoma Resection and a Proposed New Scoring System for Predicting the Utility of Intraoperative MRI. Neurol Med Chir (Tokyo) 2020; 60:553-562. [PMID: 33087635 PMCID: PMC7788269 DOI: 10.2176/nmc.oa.2020-0060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The aim of this study was to evaluate the impact of 3-Tesla intraoperative high-field magnetic resonance imaging (3T-iMRI) for pituitary adenoma resection, and to propose a new scoring system for predicting the utility of 3T-iMRI. This retrospective study evaluated 82 patients with pituitary adenoma who underwent purely endoscopic endonasal resection with 3T-iMRI between 2015 and 2019. 3T-iMRI revealed unexpected residual tumor in 39 cases (47.6%), which led to further resection and contributed to upgrading of the resection level in 28 cases (34.1%), which led to gross total resection rates (GTRs) of 67.1% and near total resection of 15.9%. To construct a new scoring system, patients were divided into a discovery cohort (56 patients) and a validation cohort (26 patients). Three variables for the scoring system were selected according to a univariate analysis of the discovery cohort: the size of the tumor (>20 mm: 1 point), the presence of suprasellar tumor lobulation (1 point) and the history of previous operations (1 point). The risk of additional resection after iMRI was well stratified by this scoring system (range 0–3; p = 0.0037 for trend). Robustness of the system was confirmed in the validation cohort (0 points, 0%; 1 point, 30.8%; 2 points, 70.0%; 3 points, 100%; p = 0.0116 for trend). These results indicate that 3T-iMRI optimized the extent of resection, even with the use of an endoscope, and that the proposed scoring system is useful for predicting whether 3T-iMRI is likely to be of value for a particular patient.
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Affiliation(s)
- Masahiro Tanji
- Department of Neurosurgery, Kyoto University Graduate School of Medicine
| | - Hiroharu Kataoka
- Department of Neurosurgery, Kyoto University Graduate School of Medicine
| | - Masahiro Kikuchi
- Department of Otolaryngology, Head and Neck Surgery, Kyoto University Graduate School of Medicine
| | - Tatsunori Sakamoto
- Department of Otolaryngology, Head and Neck Surgery, Kyoto University Graduate School of Medicine
| | - Fumihiko Kuwata
- Department of Otolaryngology, Head and Neck Surgery, Kyoto University Graduate School of Medicine
| | - Mami Matsunaga
- Department of Otolaryngology, Head and Neck Surgery, Kyoto University Graduate School of Medicine
| | - Takayuki Nakagawa
- Department of Otolaryngology, Head and Neck Surgery, Kyoto University Graduate School of Medicine
| | - Yohei Mineharu
- Department of Neurosurgery, Kyoto University Graduate School of Medicine
| | - Yoshiki Arakawa
- Department of Neurosurgery, Kyoto University Graduate School of Medicine
| | - Kazumichi Yoshida
- Department of Neurosurgery, Kyoto University Graduate School of Medicine
| | - Susumu Miyamoto
- Department of Neurosurgery, Kyoto University Graduate School of Medicine
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19
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Wang Z, Zhu J, Yao Y, Zhu H, Deng K, Lu L, Zhang Y, Duan L, Wang L, Yang H, Xiao Y, Zhao D, You H, Feng F, Ma J, Wang X, Pan H. Clinical and pathological features of 124 patients with indistinguishable sellar lesions and central diabetes insipidus. J Clin Neurosci 2020; 80:215-222. [PMID: 33099348 DOI: 10.1016/j.jocn.2020.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 06/26/2020] [Accepted: 08/02/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Sellar lesions with central diabetes insipidus have a wide range of causes, and diagnosis is relatively difficult. The indication and clinical value of biopsy are still controversial. OBJECTIVE To describe the etiology, demographic characteristics, manifestations, laboratory tests and imaging findings of this disease and to explore the clinical value and safety of endoscopic transsphenoidal biopsy. METHODS Retrospective analysis of 124 patients with sellar lesions and central diabetes insipidus who underwent endoscopic transsphenoidal biopsy at the Neurosurgery Department, Peking Union Medical College Hospital, from 2011 to 2019. RESULTS The main etiology includes congenital diseases, inflammatory/infectious diseases and tumor diseases. The most common diseases were germ cell tumors, Langerhans cell histiocytosis, lymphocytic hypophysitis, and Rathke's cleft cysts. Except for the age at the time of biopsy of patients with tumor diseases, which was significantly lower than that of the other two, the other clinical manifestations of the three types of diseases were not significantly different. Among the 124 patients, biopsy was performed via an endoscopic transsphenoidal approach for 101 with intrasellarly available lesions or via an endoscopic extended transsphenoidal approach for 23 with intrasellarly unavailable lesions. 6 patients had central nervous system infections after surgery, and 3 had cerebrospinal fluid rhinorrhea, of which 2 were surgically repaired. These incidences were basically the same as those of classic surgery. 2 patients had worse visual acuity, 2 had worse visual field, and 2 had worse eye movement. Excepting one patient, all of whom have recovered after treatment. CONCLUSIONS Noninvasive examination is difficult for identifying the common causes of this type of disease. Endoscopic transsphenoidal biopsy is relatively safe and effective, helps doctors to select the best treatment for patients, and is worth promoting.
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Affiliation(s)
- Zhicheng Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China.
| | - Jianyu Zhu
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Yong Yao
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China.
| | - Huijuan Zhu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China.
| | - Kan Deng
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Lin Lu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Yi Zhang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Lian Duan
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Linjie Wang
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Hongbo Yang
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Yu Xiao
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Dachun Zhao
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Hui You
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Feng Feng
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Jin Ma
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Xuqian Wang
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - Hui Pan
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
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Varrassi M, Cobianchi Bellisari F, Bruno F, Palumbo P, Natella R, Maggialetti N, De Filippo M, Di Cesare E, Barile A, Masciocchi C, Caranci F, Splendiani A. High-resolution magnetic resonance imaging at 3T of pituitary gland: advantages and pitfalls. Gland Surg 2019; 8:S208-S215. [PMID: 31559187 DOI: 10.21037/gs.2019.06.08] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Magnetic resonance imaging (MRI) is the primary imaging tool for the evaluation of pituitary gland pathology. In the last decades, MRI with high-field scanners has become widely used in clinical practice, leading to significant improvements in image quality mainly thanks to a superior spatial resolution and signal intensity. Moreover, several advanced functional MRI sequences have been implemented for pituitary imaging, providing valuable information in diagnostic and presurgical planning of pituitary adenomas. Higher field strength presents however some technical pitfalls to be aware of. The purpose of this article is to review the state of the art of high-resolution MRI of the pituitary gland at 3 Tesla (3T), with a particular focus on the main benefits and the possible limitations of higher field imaging.
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Affiliation(s)
- Marco Varrassi
- Radiology Department, S. Salvatore Hospital, L'Aquila, Italy
| | | | - Federico Bruno
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Pierpaolo Palumbo
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Raffaele Natella
- Radiology Department, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Nicola Maggialetti
- Department of Life and Health "V. Tiberio", University of Molise, Campobasso, Italy
| | | | - Ernesto Di Cesare
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Antonio Barile
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Carlo Masciocchi
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | | | - Alessandra Splendiani
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
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21
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Hayashi Y, Sasagawa Y, Oishi M, Kita D, Misaki K, Fukui I, Tachibana O, Nakada M. Contribution of Intrasellar Pressure Elevation to Headache Manifestation in Pituitary Adenoma Evaluated With Intraoperative Pressure Measurement. Neurosurgery 2018; 84:599-606. [DOI: 10.1093/neuros/nyy087] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 03/16/2018] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yasuhiko Hayashi
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Yasuo Sasagawa
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Masahiro Oishi
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Daisuke Kita
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Koichi Misaki
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Issei Fukui
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Osamu Tachibana
- Department of Neurosurgery, Kanazawa Medical University, Kanazawa, Japan
| | - Mitsutoshi Nakada
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
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Tjörnstrand A, Nyström HF. DIAGNOSIS OF ENDOCRINE DISEASE: Diagnostic approach to TSH-producing pituitary adenoma. Eur J Endocrinol 2017; 177:R183-R197. [PMID: 28566440 DOI: 10.1530/eje-16-1029] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 03/27/2017] [Accepted: 05/30/2017] [Indexed: 01/03/2023]
Abstract
Thyrotropin (TSH)-secreting adenomas (TSHomas) are the rarest form of pituitary adenomas, and most endocrinologists will see few cases in a lifetime, if any. In most cases, the diagnostic approach is complicated and cases may be referred after being presented as a syndrome of inappropriate TSH secretion or as a pituitary mass. This review aims to cover the past, present and possible future diagnostic approaches to TSHomas, including different clinical presentations, laboratory assessment and imaging advances. The differential diagnoses will be discussed, as well as possible coexisting disorders. By evaluating the existing reports and reviews describing this rare condition, this review aims to present a clinically practical suggestion on the diagnosic workup for TSHomas, Major advances and scientific breakthroughs in the imaging area in recent years, facilitating diagnosis of TSHomas, support the belief that future progress within the imaging field will play an important role in providing methods for a more efficient diagnosis of this rare condition.
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Affiliation(s)
- Axel Tjörnstrand
- Department of Clinical Physiology, Sahlgrenska University Hospital, Gothenburg, Sweden
- Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Helena Filipsson Nyström
- Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Endocrinology, Sahlgrenska University Hospital, Gothenburg, Sweden
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23
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Barrett TF, Dyvorne HA, Padormo F, Pawha PS, Delman BN, Shrivastava RK, Balchandani P. First Application of 7-T Magnetic Resonance Imaging in Endoscopic Endonasal Surgery of Skull Base Tumors. World Neurosurg 2017; 103:600-610. [PMID: 28359922 DOI: 10.1016/j.wneu.2017.03.088] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/18/2017] [Accepted: 03/20/2017] [Indexed: 01/16/2023]
Abstract
BACKGROUND Successful endoscopic endonasal surgery for the resection of skull base tumors is reliant on preoperative imaging to delineate pathology from the surrounding anatomy. The increased signal-to-noise ratio afforded by 7-T MRI can be used to increase spatial and contrast resolution, which may lend itself to improved imaging of the skull base. In this study, we apply a 7-T imaging protocol to patients with skull base tumors and compare the images with clinical standard of care. METHODS Images were acquired at 7 T on 11 patients with skull base lesions. Two neuroradiologists evaluated clinical 1.5-, 3-, and 7-T scans for detection of intracavernous cranial nerves and internal carotid artery (ICA) branches. Detection rates were compared. Images were used for surgical planning and uploaded to a neuronavigation platform and used to guide surgery. RESULTS Image analysis yielded improved detection rates of cranial nerves and ICA branches at 7 T. The 7-T images were successfully incorporated into preoperative planning and intraoperative neuronavigation. CONCLUSIONS Our study represents the first application of 7-T MRI to the full neurosurgical workflow for endoscopic endonasal surgery. We detected higher rates of cranial nerves and ICA branches at 7-T MRI compared with 3- and 1.5-T MRI, and found that integration of 7 T into surgical planning and guidance was feasible. These results suggest a potential for 7-T MRI to reduce surgical complications. Future studies comparing standardized 7-, 3-, and 1.5-T MRI protocols in a larger number of patients are warranted to determine the relative benefit of 7-T MRI for endonasal endoscopic surgical efficacy.
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Affiliation(s)
- Thomas F Barrett
- Department of Neurosurgery, Mount Sinai Medical Center, New York, NY, USA.
| | - Hadrien A Dyvorne
- The Translational and Molecular Imaging Institute, Mount Sinai Medical Center, New York, NY, USA
| | - Francesco Padormo
- The Translational and Molecular Imaging Institute, Mount Sinai Medical Center, New York, NY, USA
| | - Puneet S Pawha
- Department of Radiology, Mount Sinai Medical Center, New York, NY, USA
| | - Bradley N Delman
- Department of Radiology, Mount Sinai Medical Center, New York, NY, USA
| | - Raj K Shrivastava
- Department of Neurosurgery, Mount Sinai Medical Center, New York, NY, USA
| | - Priti Balchandani
- The Translational and Molecular Imaging Institute, Mount Sinai Medical Center, New York, NY, USA
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Vitale G, Tortora F, Baldelli R, Cocchiara F, Paragliola RM, Sbardella E, Simeoli C, Caranci F, Pivonello R, Colao A. Pituitary magnetic resonance imaging in Cushing's disease. Endocrine 2017; 55:691-696. [PMID: 27435590 DOI: 10.1007/s12020-016-1038-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 06/24/2016] [Indexed: 11/26/2022]
Abstract
Adrenocorticotropin-secreting pituitary tumor represents about 10 % of pituitary adenomas and at the time of diagnosis most of them are microadenomas. Transsphenoidal surgery is the first-line treatment of Cushing's disease and accurate localization of the tumor within the gland is essential for selectively removing the lesion and preserving normal pituitary function. Magnetic resonance imaging is the best imaging modality for the detection of pituitary tumors, but adrenocorticotropin-secreting pituitary microadenomas are not correctly identified in 30-50 % of cases, because of their size, location, and enhancing characteristics. Several recent studies were performed with the purpose of better localizing the adrenocorticotropin-secreting microadenomas through the use in magnetic resonance imaging of specific sequences, reduced contrast medium dose and high-field technology. Therefore, an improved imaging technique for pituitary disease is mandatory in the suspect of Cushing's disease. The aims of this paper are to present an overview of pituitary magnetic resonance imaging in the diagnosis of Cushing's disease and to provide a magnetic resonance imaging protocol to be followed in case of suspicion adrenocorticotropin-secreting pituitary adenoma.
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Affiliation(s)
- Giovanni Vitale
- Department of Clinical Sciences and Community Health (DISCCO), University of Milan, Milan, Italy.
- Laboratory of Endocrine and Metabolic Research, Istituto Auxologico Italiano IRCCS, Milan, Italy.
| | - Fabio Tortora
- Dipartimento Medico-Chirurgico di Internistica Clinica e Sperimentale "F. Magrassi e A. Lanzara", Second University of Naples, Naples, Italy
| | - Roberto Baldelli
- UOSD Endocrinologia, Istituto Nazionale Tumori "Regina Elena" -Roma, Rome, Italy
| | - Francesco Cocchiara
- Endocrinology, Department of Internal Medicine and Medical Specialities (DiMI), IRCCS AOU San Martino-IST, University of Genova, Genova, Italy
| | | | - Emilia Sbardella
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Chiara Simeoli
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università Federico II di Napoli, Naples, Italy
| | - Ferdinando Caranci
- Department of Advanced Biomedical Sciences, Federico II University of Naples, Naples, Italy
| | - Rosario Pivonello
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università Federico II di Napoli, Naples, Italy
| | - Annamaria Colao
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università Federico II di Napoli, Naples, Italy
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Zaidi HA, De Los Reyes K, Barkhoudarian G, Litvack ZN, Bi WL, Rincon-Torroella J, Mukundan S, Dunn IF, Laws ER. The utility of high-resolution intraoperative MRI in endoscopic transsphenoidal surgery for pituitary macroadenomas: early experience in the Advanced Multimodality Image Guided Operating suite. Neurosurg Focus 2016; 40:E18. [PMID: 26926058 DOI: 10.3171/2016.1.focus15515] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Endoscopic skull base surgery has become increasingly popular among the skull base surgery community, with improved illumination and angled visualization potentially improving tumor resection rates. Intraoperative MRI (iMRI) is used to detect residual disease during the course of the resection. This study is an investigation of the utility of 3-T iMRI in combination with transnasal endoscopy with regard to gross-total resection (GTR) of pituitary macroadenomas. METHODS The authors retrospectively reviewed all endoscopic transsphenoidal operations performed in the Advanced Multimodality Image Guided Operating (AMIGO) suite from November 2011 to December 2014. Inclusion criteria were patients harboring presumed pituitary macroadenomas with optic nerve or chiasmal compression and visual loss, operated on by a single surgeon. RESULTS Of the 27 patients who underwent transsphenoidal resection in the AMIGO suite, 20 patients met the inclusion criteria. The endoscope alone, without the use of iMRI, would have correctly predicted extent of resection in 13 (65%) of 20 cases. Gross-total resection was achieved in 12 patients (60%) prior to MRI. Intraoperative MRI helped convert 1 STR and 4 NTRs to GTRs, increasing the number of GTRs from 12 (60%) to 16 (80%). CONCLUSIONS Despite advances in visualization provided by the endoscope, the incidence of residual disease can potentially place the patient at risk for additional surgery. The authors found that iMRI can be useful in detecting unexpected residual tumor. The cost-effectiveness of this tool is yet to be determined.
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Affiliation(s)
| | | | | | | | | | | | - Srinivasan Mukundan
- Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
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26
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Abstract
The sellar region is a tiny anatomic compartment in which many lesions and developmental diseases can be found. If pituitary adenomas represent most of the sellar mass, it is important to recognize other pathologic conditions before any surgical procedure, because the optimal treatment may differ considerably from one lesion to another. A careful clinical evaluation followed by neuroimaging studies and an endocrinologic and ophtalmologic workup will lead, in most cases, to a diagnosis with near certainty. This article provides an overview of sellar diseases with emphasis on their most useful characteristics for clinical practice.
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Affiliation(s)
- Damien Bresson
- Neurosurgery Department, Assistance Publique-Hôpitaux de Paris, 2 rue Ambroise Paré, Paris 75010, France
| | - Philippe Herman
- ENT Department, Lariboisière Hospital, Université Paris VII - Diderot, 2 rue Ambroise Paré, Paris 75010, France
| | - Marc Polivka
- Department of Pathology, Lariboisiere Hospital, 2 rue Ambroise Paré, Paris 75010, France
| | - Sébastien Froelich
- Neurosurgery Department, Assistance Publique-Hôpitaux de Paris, Université Paris VII - Diderot, 2 rue Ambroise Paré, Paris 75010, France.
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Abstract
High-resolution MRI of the pediatric sella can help identity or confirm clinical abnormalities, assess pituitary gland size and structure, and reveal acquired lesions. This article reviews contemporary techniques for imaging of the sella and associated structures in this population. Strengths and weaknesses of conventional imaging are discussed, as are techniques that can enhance yield. Some new and emerging technologies are discussed, including MR elastography, perfusion imaging, spectroscopy, and diffusion-weighted and diffusion-tensor imaging. It is expected that this overview will provide insight as to where pediatric sella imaging is currently and where it may head in the future.
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Affiliation(s)
- Jad M Bou-Ayache
- Department of Radiology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1234, New York, NY 10029, USA
| | - Bradley N Delman
- Department of Radiology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1234, New York, NY 10029, USA.
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Saeger W, Petersenn S, Schöfl C, Knappe UJ, Theodoropoulou M, Buslei R, Honegger J. Emerging Histopathological and Genetic Parameters of Pituitary Adenomas: Clinical Impact and Recommendation for Future WHO Classification. Endocr Pathol 2016; 27:115-22. [PMID: 26874696 DOI: 10.1007/s12022-016-9419-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The review assesses immunohistochemical findings of somatostatin receptors and of metalloproteinases in different pituitary adenoma types and the significance of molecular genetic data. Current evidence does not support routine immunohistochemical assessment of somatostatin or dopamine receptor subtype expression on hormone-secreting or nonfunctioning pituitary adenomas. Further prospective studies are needed to define its role for clinical decision making. Until then we suggest to restrict membrane receptor profiling to individual cases or for study purposes. The problems of adenoma expansion and invasion are discussed. Despite partially contradictory publications, proteases clearly play a major role in permission of infiltrative growth of pituitary adenomas. Therefore, detection of at least MMP-2, MMP-9, TIMP-2, and uPA seems to be justified. Molecular characterization is important for familial adenomas, adenomas in MEN, Carney complex, and McCune-Albright syndrome and can gain insight into pathogenesis of sporadic adenomas.
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Affiliation(s)
- W Saeger
- Institutes of Pathology and Neuropathology, University of Hamburg, UKE, Martinistraße 52, 20246, Hamburg, Germany.
| | - S Petersenn
- ENDOC Center for Endocrinology, 22587 Hamburg, Germany
| | - C Schöfl
- Division of Endocrinology and Diabetes, Department of Medicine I, Universitätsklinikum Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - U J Knappe
- Department of Neurosurgery, Johannes-Wesling-Klinikum Minden, 32429, Minden, Germany
| | - M Theodoropoulou
- Department of Endocrinology, Max Planck Institute of Psychiatry, 80804, Munich, Germany
| | - R Buslei
- Department of Neuropathology, Friedrich-Alexander University Erlangen-Nürnberg (FAU), 91054, Erlangen, Germany
| | - J Honegger
- Clinic of Neurosurgery, University of Tübingen, 72076, Tübingen, Germany
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Chittiboina P, Talagala SL, Merkle H, Sarlls JE, Montgomery BK, Piazza MG, Scott G, Ray-Chaudhury A, Lonser RR, Oldfield EH, Koretsky AP, Butman JA. Endosphenoidal coil for intraoperative magnetic resonance imaging of the pituitary gland during transsphenoidal surgery. J Neurosurg 2016; 125:1451-1459. [PMID: 26991390 DOI: 10.3171/2015.11.jns151465] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Pituitary MR imaging fails to detect over 50% of microadenomas in Cushing's disease and nearly 80% of cases of dural microinvasion. Surface coils can generate exceptionally high-resolution images of the immediately adjacent tissues. To improve imaging of the pituitary gland, a receive-only surface coil that can be placed within the sphenoid sinus (the endosphenoidal coil [ESC]) during transsphenoidal surgery (TSS) was developed and assessed. METHODS Five cadaver heads were used for preclinical testing of the ESC. The ESC (a double-turn, 12-mm-diameter surface coil made from 1-mm-diameter copper wire) was developed to obtain images in a 1.5-T MR scanner. The ESC was placed (via a standard sublabial TSS approach) on the anterior sella face. Clinical MR scans were obtained using the 8-channel head coil and ESC as the receiver coils. Using the ESC, ultra-high-resolution, 3D, balanced fast field echo (BFFE) and T1-weighted imaging were performed at resolutions of 0.25 × 0.25 × 0.50 mm3 and 0.15 × 0.15 × 0.30 mm3, respectively. RESULTS Region-of-interest analysis indicated a 10-fold increase in the signal-to-noise ratio (SNR) of the pituitary when using the ESC compared with the 8-channel head coil. ESC-related improvements (p < 0.01) in the SNR were inversely proportional to the distance from the ESC tip to the anterior pituitary gland surface. High-resolution BFFE MR imaging obtained using ESC revealed a number of anatomical features critical to pituitary surgery that were not visible on 8-channel MR imaging, including the pituitary capsule, the intercavernous sinus, and microcalcifications in the pars intermedia. These ESC imaging findings were confirmed by the pathological correlation with whole-mount pituitary sections. CONCLUSIONS ESC can significantly improve SNR in the sellar region intraoperatively using current 1.5-T MR imaging platforms. Improvement in SNR can provide images of the sella and surrounding structures with unprecedented resolution. Clinical use of this ESC may allow for MR imaging detection of previously occult pituitary adenomas and identify microscopic invasion of the dura or cavernous sinus.
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Affiliation(s)
- Prashant Chittiboina
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke
| | | | - Hellmut Merkle
- Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke; and
| | | | - Blake K Montgomery
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke
| | - Martin G Piazza
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke
| | - Gretchen Scott
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke
| | - Abhik Ray-Chaudhury
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke
| | - Russell R Lonser
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke.,Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio; and
| | - Edward H Oldfield
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke.,Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Alan P Koretsky
- Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke; and
| | - John A Butman
- Radiology and Imaging Sciences, the National Institutes of Health, Bethesda, Maryland
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30
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Imaging of skull base tumours. Rep Pract Oncol Radiother 2016; 21:304-18. [PMID: 27330416 DOI: 10.1016/j.rpor.2015.12.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 11/12/2015] [Accepted: 12/23/2015] [Indexed: 11/21/2022] Open
Abstract
The skull base is a highly complex and difficult to access anatomical region, which constitutes a relatively common site for neoplasms. Imaging plays a central role in establishing the differential diagnosis, to determine the anatomic tumour spread and for operative planning. All skull base imaging should be performed using thin-section multiplanar imaging, whereby CT and MRI can be considered complimentary. An interdisciplinary team approach is central to improve the outcome of these challenging tumours.
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31
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de Rotte AAJ, Groenewegen A, Rutgers DR, Witkamp T, Zelissen PMJ, Meijer FJA, van Lindert EJ, Hermus A, Luijten PR, Hendrikse J. High resolution pituitary gland MRI at 7.0 tesla: a clinical evaluation in Cushing's disease. Eur Radiol 2015; 26:271-7. [PMID: 25991481 PMCID: PMC4666272 DOI: 10.1007/s00330-015-3809-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 03/29/2015] [Accepted: 04/16/2015] [Indexed: 11/26/2022]
Abstract
Objective To evaluate the detection of pituitary lesions at 7.0 T compared to 1.5 T MRI in 16 patients with clinically and biochemically proven Cushing’s disease. Methods In seven patients, no lesion was detected on the initial 1.5 T MRI, and in nine patients it was uncertain whether there was a lesion. Firstly, two readers assessed both 1.5 T and 7.0 T MRI examinations unpaired in a random order for the presence of lesions. Consensus reading with a third neuroradiologist was used to define final lesions in all MRIs. Secondly, surgical outcome was evaluated. A comparison was made between the lesions visualized with MRI and the lesions found during surgery in 9/16 patients. Results The interobserver agreement for lesion detection was good at 1.5 T MRI (κ = 0.69) and 7.0 T MRI (κ = 0.62). In five patients, both the 1.5 T and 7.0 T MRI enabled visualization of a lesion on the correct side of the pituitary gland. In three patients, 7.0 T MRI detected a lesion on the correct side of the pituitary gland, while no lesion was visible at 1.5 T MRI. Conclusion The interobserver agreement of image assessment for 7.0 T MRI in patients with Cushing’s disease was good, and lesions were detected more accurately with 7.0 T MRI. Key Points • Interobserver agreement for lesion detection on 1.5 T MRI was good; • Interobserver agreement for lesion detection on 7.0 T MRI was good; • 7.0 T enabled confirmation of unclear lesions at 1.5 T; • 7.0 T enabled visualization of lesions not visible at 1.5 T. Electronic supplementary material The online version of this article (doi:10.1007/s00330-015-3809-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Alexandra A J de Rotte
- Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, Postbox 85500, 3508 GA, Utrecht, The Netherlands.
| | - Amy Groenewegen
- Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, Postbox 85500, 3508 GA, Utrecht, The Netherlands
| | - Dik R Rutgers
- Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, Postbox 85500, 3508 GA, Utrecht, The Netherlands
| | - Theo Witkamp
- Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, Postbox 85500, 3508 GA, Utrecht, The Netherlands
| | - Pierre M J Zelissen
- Department of Internal Medicine (Section of Endocrinology), University Medical Center Utrecht, Utrecht, The Netherlands
| | - F J Anton Meijer
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Erik J van Lindert
- Department of Neurosurgery, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ad Hermus
- Department of Internal Medicine (Section of Endocrinology), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Peter R Luijten
- Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, Postbox 85500, 3508 GA, Utrecht, The Netherlands
| | - Jeroen Hendrikse
- Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, Postbox 85500, 3508 GA, Utrecht, The Netherlands
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Hornyak M, Couldwell WT. Multimodality Treatment for Invasive Pituitary Adenomas. Postgrad Med 2015; 121:168-76. [DOI: 10.3810/pgm.2009.03.1989] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Kurosaki M, Kambe A, Watanabe T, Fujii S, Ogawa T. Serial 3 T magnetic resonance imaging during cabergoline treatment of macroprolactinomas. Neurol Res 2014; 37:341-6. [PMID: 25376133 DOI: 10.1179/1743132814y.0000000457] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
OBJECTIVE Cabergoline is the treatment of choice for prolactin (PRL)-producing pituitary adenomas, because of its efficacy in normalizing PRL levels, and inducing tumor shrinkage. The clinical use of 3 T magnetic resonance imaging (MRI) for neuroimaging has rapidly expanded in recent years. In particular, T2-weighted imaging (T2WI) provides high anatomical and contrast resolution. PATIENTS AND METHODS In this study, serial 3 T MRI with T2WI was utilized during cabergoline treatment of 10 patients with macroprolactinomas. Cabergoline was started at a standard weekly dosage and incrementally adjusted on individual posttreatment PRL values. RESULTS MRI confirmed tumor shrinkage in all patients during cabergoline treatment. Cabergoline normalized hyperprolactinemia in all but one patient. In six of 10 patients, distinct low-signal-intensity areas were evident throughout the adenomas on T2WI. In four of those six patients, massive low-signal-intensity areas appeared at 1-4 months, after which tumors decreased in size by over 80%. These findings in the early phase of prolactinoma treatment predicted pronounced regression or near-complete disappearance of the tumor. Reduction of T2 intensity possibly reflected dehydration due to diffuse hemorrhage in the adenomas. CONCLUSION T2-weighted 3 T MR images are valuable for assessing and monitoring cabergoline treatment of macroprolactinomas.
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Assessment of pituitary micro-lesions using 3D sampling perfection with application-optimized contrasts using different flip-angle evolutions. Neuroradiology 2014; 56:1047-53. [DOI: 10.1007/s00234-014-1432-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 09/09/2014] [Indexed: 10/24/2022]
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Qian D, El-Sharkawy AMM, Bottomley PA, Edelstein WA. An RF dosimeter for independent SAR measurement in MRI scanners. Med Phys 2014; 40:122303. [PMID: 24320534 DOI: 10.1118/1.4829527] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE The monitoring and management of radio frequency (RF) exposure is critical for ensuring magnetic resonance imaging (MRI) safety. Commercial MRI scanners can overestimate specific absorption rates (SAR) and improperly restrict clinical MRI scans or the application of new MRI sequences, while underestimation of SAR can lead to tissue heating and thermal injury. Accurate scanner-independent RF dosimetry is essential for measuring actual exposure when SAR is critical for ensuring regulatory compliance and MRI safety, for establishing RF exposure while evaluating interventional leads and devices, and for routine MRI quality assessment by medical physicists. However, at present there are no scanner-independent SAR dosimeters. METHODS An SAR dosimeter with an RF transducer comprises two orthogonal, rectangular copper loops and a spherical MRI phantom. The transducer is placed in the magnet bore and calibrated to approximate the resistive loading of the scanner's whole-body birdcage RF coil for human subjects in Philips, GE and Siemens 3 tesla (3T) MRI scanners. The transducer loop reactances are adjusted to minimize interference with the transmit RF field (B1) at the MRI frequency. Power from the RF transducer is sampled with a high dynamic range power monitor and recorded on a computer. The deposited power is calibrated and tested on eight different MRI scanners. Whole-body absorbed power vs weight and body mass index (BMI) is measured directly on 26 subjects. RESULTS A single linear calibration curve sufficed for RF dosimetry at 127.8 MHz on three different Philips and three GE 3T MRI scanners. An RF dosimeter operating at 123.2 MHz on two Siemens 3T scanners required a separate transducer and a slightly different calibration curve. Measurement accuracy was ∼3%. With the torso landmarked at the xiphoid, human adult whole-body absorbed power varied approximately linearly with patient weight and BMI. This indicates that whole-body torso SAR is on average independent of the imaging subject, albeit with fluctuations. CONCLUSIONS Our 3T RF dosimeter and transducers accurately measure RF exposure in body-equivalent loads and provide scanner-independent assessments of whole-body RF power deposition for establishing safety compliance useful for MRI sequence and device testing.
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Affiliation(s)
- Di Qian
- Division of MR Research, Department of Radiology, Johns Hopkins School of Medicine, Baltimore, Maryland 21287 and Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland 21218
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Syro LV, Builes CE, Di Ieva A, Sav A, Rotondo F, Kovacs K. Improving differential diagnosis of pituitary adenomas. Expert Rev Endocrinol Metab 2014; 9:377-386. [PMID: 30763997 DOI: 10.1586/17446651.2014.922412] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Pituitary adenomas are common tumors arising in adenohypophysial cells or their precursors. For improving control of the disease an early diagnosis is important. Initially considered sporadic tumors, some of them are associated with familial syndromes and their recognition and classification is also required. Morphologically, pituitary adenomas represent a heterogeneous group of tumors with several subtypes and different clinical behavior thus a precise pathological diagnosis is crucial. The simple diagnosis of pituitary adenoma is not satisfactory and the correct classification of histological subtypes may predict aggressiveness in the majority of cases. Although considered not malignant, some of them are clinically aggressive and their recognition remains a challenge. In this paper we present the recent advances in the event of improving early recognition and differential diagnosis of pituitary tumors.
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Affiliation(s)
- Luis V Syro
- a Department of Neurosurgery, Hospital Pablo Tobon Uribe and Clinica Medellin, Calle 54 # 46-27, Cons 501, Medellin, Colombia
| | - Carlos E Builes
- b Department of Endocrinology, Hospital Pablo Tobon Uribe, Medellin, Colombia
| | - Antonio Di Ieva
- c Department of Surgery, Division of Neurosurgery, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Aydin Sav
- d Department of Pathology, Acibadem University, School of Medicine, Atasehir, Istanbul, Turkey
| | - Fabio Rotondo
- e Laboratory Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Kalman Kovacs
- e Laboratory Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
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de Rotte AAJ, van der Kolk AG, Rutgers D, Zelissen PMJ, Visser F, Luijten PR, Hendrikse J. Feasibility of high-resolution pituitary MRI at 7.0 tesla. Eur Radiol 2014; 24:2005-11. [DOI: 10.1007/s00330-014-3230-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 04/22/2014] [Accepted: 05/08/2014] [Indexed: 11/28/2022]
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Bakhtiar Y, Hanaya R, Tokimura H, Hirano H, Oyoshi T, Fujio S, Bohara M, Arita K. Geometric survey on magnetic resonance imaging of growth hormone producing pituitary adenoma. Pituitary 2014; 17:142-9. [PMID: 23504370 DOI: 10.1007/s11102-013-0479-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Apart from the radiologic features regarding size and invasiveness, we had noticed some differences in morphology among types of pituitary adenomas. We conducted this study to verify the differences in radiologic morphology between growth hormone producing pituitary adenomas (GHoma) and nonfunctioning pituitary adenomas (NFoma). Pre-surgical magnetic resonance images (MRIs) were assessed in 50 cases of GHoma and 50 cases of NFoma. Geometric parameters on MRI were set in accordance with sellar anatomy. Intensity of T1-weighted image was not different between the two groups, but hypo-intensity of T2-weighted image was more frequently seen in GHoma. Predominant inferior extension of tumor was seen mostly in GHoma (88 vs. 38%). Extension of the tumor to the superior compartment of cavernous sinus was more frequent in NFoma. Pituitary gland was generally located superior to GHoma and postero-superior to NFoma. Growth characteristics of pituitary adenoma were confirmed to differ between GHoma and NFoma.
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Affiliation(s)
- Yuriz Bakhtiar
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan
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Nakazawa H, Shibamoto Y, Tsugawa T, Mori Y, Nishio M, Takami T, Komori M, Hashizume C, Kobayashi T. Efficacy of magnetic resonance imaging at 3 T compared with 1.5 T in small pituitary tumors for stereotactic radiosurgery planning. Jpn J Radiol 2013; 32:22-9. [PMID: 24248770 DOI: 10.1007/s11604-013-0262-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Accepted: 10/29/2013] [Indexed: 10/26/2022]
Abstract
PURPOSE The objective of this study was to determine the value of high-field magnetic resonance imaging and to clarify the characteristics of each image among three-dimensional gradient echo (3D-GRE), two-dimensional spin echo (2D-SE) and inversion recovery (2D-IR) sequences used as contrast-enhanced T1-weighted images for stereotactic irradiation treatment planning of sellar lesions. MATERIALS AND METHODS Pulse sequences of 2D-SE and 3D-spoiled gradient recalled acquisition in the steady state (3D-SPGR) using GRE at 1.5 T and 2D-IR and 3D-fast SPGR (3D-FSPGR) at 3 T after injection of contrast material were acquired for 14 small pituitary tumors. As quantitative methods, signal-to-noise ratios (SNR) and contrast-to-noise ratios (CNR) were evaluated using a region-of-interest analysis. RESULTS There was no significant difference in SNR between 1.5-T SPGR and 3-T FSPGR, while 3-T IR was superior to 1.5-T SE. The 2D-SE and -IR provided significantly better CNR than 3D-GRE between tumor and normal structures. CONCLUSIONS Three Tesla was found to be superior to 1.5 T in distinguishing tumors from the normal sellar structure. Optimal dose planning will utilize each advantage of imaging; 3D-GRE allows high-resolution acquisition and 2D-SE and -IR can offer better tissue contrast.
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Affiliation(s)
- Hisato Nakazawa
- Department of Radiological Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daikominami, Higashiku, Nagoya, Aichi, 461-8673, Japan,
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Cao L, Chen H, Hong J, Ma M, Zhong Q, Wang S. Magnetic resonance imaging appearance of the medial wall of the cavernous sinus for the assessment of cavernous sinus invasion by pituitary adenomas. J Neuroradiol 2013; 40:245-51. [PMID: 23886874 DOI: 10.1016/j.neurad.2013.06.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Revised: 05/31/2013] [Accepted: 06/18/2013] [Indexed: 12/01/2022]
Abstract
PURPOSE The diagnostic criteria for cavernous sinus invasion (CSI) by pituitary adenomas are still unsatisfactory and controversial. For this reason, the study examined the appearance of the medial wall of the cavernous sinus (MWCS) on proton-density-weighted (PDW) magnetic resonance imaging (MRI) to determine its value for preoperative assessment of CSI. METHODS A 3.0-Tesla MRI scanner was used to obtain preoperative PDW images and conventional MRI sequences of 48 consecutive pituitary adenomas, and the MWCS was examined in PDW images to determine the presence of CSI in comparison to surgical findings and three traditional MRI criteria: Knosp grading system (KGS); percentage of encasement of the internal carotid artery (PEICA); and replacement of cavernous sinus compartments (RCSC) by tumors. The value of the MWCS as seen on MRI was compared with that of the Ki-67 labelling index (Ki-67 LI). RESULTS CSI images showed that continuity of the MWCS was interrupted and that tumor tissue had infiltrated the cavernous sinus (CS) compartments through the defects. In 96 CSs from 48 patients, the sensitivity of MRI visualization of the MWCS for detection of CSI was 93.3% with a specificity of 93.8%, which was significantly higher than with KGS, PEICA and RCSC (P=0.007, P=0.008 and P=0.056, respectively). Histopathological results showed no significant differences between MRI visualization of the MWCS and the Ki-67 LI. CONCLUSION PDW imaging permits adequate visualization of the MWCS and is superior to traditional diagnostic criteria for the detection of CSI, providing accurate preoperative images for intraoperative navigation.
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Affiliation(s)
- Lei Cao
- Department of Neurosurgery, Fuzhou General Hospital, 156, Xihuanbei Road, Fuzhou Fujian 350025, China; Capital Medical University, Beijing Neurosurgical Institute, 6, Tiantanxili, Beijing 100050, China
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Kurosaki M, Tabuchi S, Akatsuka K, Kamitani H, Watanabe T. Application of phase sensitive imaging (PSI) for hemorrhage diagnosis in pituitary adenomas. Neurol Res 2013; 32:614-9. [DOI: 10.1179/174313209x455709] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Hung CH, Chang KH, Wu YM, Chen YL, Lyu RK, Chang HS, Wu YR, Chen CM, Huang CC, Chu CC, Liao MF, Wai YY, Hsu SP, Ro LS. A comparison of benign and inflammatory manifestations of Tolosa-Hunt syndrome. Cephalalgia 2013; 33:842-52. [PMID: 23475292 DOI: 10.1177/0333102412475238] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Tolosa-Hunt syndrome (THS) manifests as a benign or an inflammatory type disease. The nosography differences between these types remain to be elucidated. We aimed to analyze and compare the clinical presentations of benign and inflammatory THS. METHODS The ward patients who presented with THS from January 1990 to May 2011 were retrospectively reviewed. THS was diagnosed according to the recommendations of the International Headache Society. RESULTS Of the 53 THS cases (49 patients), 30 (56.6%) were classified as benign and 23 (43.4%) as inflammatory THS. There were strong similarities between the groups in terms of clinical manifestations, laboratory findings, responses to glucocorticoid treatment, and outcomes. However, patients with inflammatory THS tended to be younger (mean age, 43.4 years; P 0.05) and have optic nerve dysfunction (56.5%; P 0.05) and longer disease duration (2.3 ± 1.0 months; P 0.05) compared to those with benign THS (mean age, 56.4 years; mean disease duration, 1.6 ± 0.7 months). The patients with additional involvement of both the optic nerve and the second division of the trigeminal nerve experienced a longer disease duration ( P 0.05). Additionally, patients with orbital pseudotumors had diplopia that responded poorly to treatment with glucocorticoids ( P 0.05). High-dose (>0.5 mg/kg/day) and low-dose (≤0.5 mg/kg/day) prednisolone were equally effective in relieving symptoms in both groups ( P > 0.05). CONCLUSION Benign and inflammatory THS were highly similar in terms of nosography. The responses to glucocorticoid treatment were generally good except in patients with orbital pseudotumors.
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Affiliation(s)
- Chih-Hsien Hung
- Department of Neurology, E-Da Hospital, I-Shou University, Taiwan
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Abstract
The lateral sellar compartment is a complex anatomical structure containing many different elements, any of which can be at the root of a pathological condition. MRI is the examination of choice for this region, and requires the use of specific protocols and systematic examination of each of these elements to produce a suitable diagnosis.
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Affiliation(s)
- A Boulin
- Neuroradiology Department, Hôpital Foch, Suresnes, France.
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Abstract
There have been substantial advances in pituitary imaging in the last half-century. In particular, magnetic resonance imaging is now established as the imaging modality of choice, providing high quality images of the hypothalamic-pituitary axis and adjacent structures. More recent technological advances, such as the emergence of 3 Tesla MRI, are already being widely incorporated into imaging practice. However, other advanced techniques, including a variety of potential imaging biomarkers, still require further research to evaluate their potential and define their precise role. The recent development of intraoperative MRI appears promising and may have the potential to improve the outcome of pituitary surgery. Modern high quality imaging inevitably leads to the discovery of incidental lesions, including those within the pituitary gland, although it also plays a central role in their subsequent evaluation and management.
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Affiliation(s)
- Sachit Shah
- Department of Imaging, Imperial College Healthcare NHS Trust & Imperial College, London, UK
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Ono E, Ozawa A, Matoba K, Motoki T, Tajima A, Miyata I, Ito J, Inoshita N, Yamada S, Ida H. Diagnostic usefulness of 3 tesla MRI of the brain for cushing disease in a child. Clin Pediatr Endocrinol 2011; 20:89-93. [PMID: 23926401 PMCID: PMC3687643 DOI: 10.1297/cpe.20.89] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Accepted: 07/14/2011] [Indexed: 11/18/2022] Open
Abstract
It is sometimes difficult to confirm the location of a microadenoma in Cushing disease.
Recently, we experienced an 11-yr-old female case of Cushing disease with
hyperprolactinemia. She was referred to our hospital because of decrease of height
velocity with body weight gain. On admission, she had typical symptoms of Cushing
syndrome. Although no pituitary microadenomas were detected on 1.5 Tesla MRI of the brain,
endocrinological examinations including IPS and CS sampling were consistent with Cushing
disease with hyperprolactinemia. Oral administration of methyrapone instead of
neurosurgery was started after discharge, but subsequent 3 Tesla MRI of the brain clearly
demonstrated a 3-mm less-enhanced lesion in the left side of the pituitary gland. Finally,
transsphenoidal surgery was performed, and a 3.5-mm left-sided microadenoma was resected.
Compared with 1.5 Tesla MRI, 3 Tesla MRI offers the advantage of a higher signal to noise
ratio (SNR), which provides higher resolution and proper image quality. Therefore, 3 Tesla
MRI is a very useful tool to localize microadenomas in Cushing disease in children as well
as in adults. It will be the first choice of radiological examinations in suspected cases
of Cushing disease.
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Affiliation(s)
- Erina Ono
- Department of Pediatrics, The Jikei University School of Medicine, Tokyo, Japan
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Stobo DB, Lindsay RS, Connell JM, Dunn L, Forbes KP. Initial experience of 3 Tesla versus conventional field strength magnetic resonance imaging of small functioning pituitary tumours. Clin Endocrinol (Oxf) 2011; 75:673-7. [PMID: 21609346 DOI: 10.1111/j.1365-2265.2011.04098.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Higher field strength magnetic resonance imaging (MRI) is becoming increasingly available and offers improved image quality; however, the clinical usefulness of this technique for the demonstration of surgically treatable functional pituitary adenomas has not been clearly established. OBJECTIVE To determine whether 3 Tesla (3T) MRI improves the detection of ACTH- and GH-secreting microadenomas over conventional imaging at field strengths of up to 1·5 Tesla (1·5T). DESIGN Data sets from postgadolinium T1-weighted MRI at 1·5T and 3T were blinded, randomly ordered and assessed for the presence of pituitary tumour by two radiologists. Where possible, lesion signal difference to noise ratio (SDNR) was calculated for quantitative comparison. Imaging diagnoses were correlated with subsequent surgical and histological findings. PATIENTS Twenty-four patients (10 men, 14 women) with biochemical evidence of Cushing's disease (19) or acromegaly (5) were identified over a 5-year period. RESULTS 1·5T MRI gave a clear diagnosis of 12 pituitary tumours, all confirmed at 3T. Four additional definite lesions and one suspicious case were correctly identified at 3T. Histological correlation in 21 cases showed sensitivity improving from 54% with 1·5T to 85% with 3T. Radiologists' subjective image preference favoured 3T in 92%. Quantitative difference between tumour and parenchymal signal was significantly greater at 3T (mean SDNR -7·9 [3T] and -2·8 [1·5T], paired t-test P < 0·05). CONCLUSIONS 3T MRI appears to offer increased conspicuity and detection of GH- and ACTH-secreting pituitary microadenomas. It is potentially clinically useful when 1·5T imaging is negative or equivocal.
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Affiliation(s)
- David B Stobo
- Department of Neuroradiology, Institute of Neurological Sciences, Southern General Hospital, Glasgow, UK
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Gonçalves MB, de Oliveira JG, Williams HA, Alvarenga RMP, Landeiro JA. Cavernous sinus medial wall: dural or fibrous layer? Systematic review of the literature. Neurosurg Rev 2011; 35:147-53; discussion 153-4. [DOI: 10.1007/s10143-011-0360-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2010] [Revised: 06/14/2011] [Accepted: 08/25/2011] [Indexed: 11/28/2022]
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Pinker-Domenig K, Bogner W, Gruber S, Bickel H, Duffy S, Schernthaner M, Dubsky P, Pluschnig U, Rudas M, Trattnig S, Helbich TH. High resolution MRI of the breast at 3 T: which BI-RADS® descriptors are most strongly associated with the diagnosis of breast cancer? Eur Radiol 2011; 22:322-30. [DOI: 10.1007/s00330-011-2256-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 08/03/2011] [Accepted: 08/15/2011] [Indexed: 12/24/2022]
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Abstract
In the appropriate clinical setting of pituitary hyperfunction or hypofunction, visual field deficit, or cranial nerve palsy, imaging of the pituitary is necessary. This article reviews the normal appearance of the pituitary and its surroundings, emphasizing magnetic resonance imaging. Typical and variant appearances of pituitary pathology are discussed. Because growth of adenoma into surrounding structures is important to surgical management, cavernous sinus invasion and suprasellar spread as well as adenoma mimics are illustrated. Typical examples of pituitary dysfunction from other entities that secondarily affect the gland, hypophysis, or third ventricle are discussed. Some common errors of interpretation are listed.
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Affiliation(s)
- Tao Ouyang
- Division of Neuroradiology, Department of Radiology, Penn State Hershey Medical Center, 500 University Drive, H066, Hershey, PA 17033, USA.
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