Predicting the Consistency of Pituitary Macroadenomas: The Utility of Diffusion-Weighted Imaging and Apparent Diffusion Coefficient Measurements for Surgical Planning

Understanding the consistency of pituitary macroadenomas is crucial for neurosurgeons planning surgery. This retrospective study aimed to evaluate the utility of diffusion-weighted imaging (DWI) and the apparent diffusion coefficient (ADC) as non-invasive imaging modalities for predicting the consis...

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Main Authors: Rania Mostafa A. Hassan, Yassir Edrees Almalki, Mohammad Abd Alkhalik Basha, Sharifa Khalid Alduraibi, Alshehri Hanan Hassan, Mervat Aboualkheir, Ziyad A. Almushayti, Alaa K. Alduraibi, Mona M. Amer, Ahmed M. Abdelkhalik Basha, Mona Mohammed Refaat
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Diagnostics
Subjects:
Online Access:https://www.mdpi.com/2075-4418/14/5/493
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author Rania Mostafa A. Hassan
Yassir Edrees Almalki
Mohammad Abd Alkhalik Basha
Sharifa Khalid Alduraibi
Alshehri Hanan Hassan
Mervat Aboualkheir
Ziyad A. Almushayti
Alaa K. Alduraibi
Mona M. Amer
Ahmed M. Abdelkhalik Basha
Mona Mohammed Refaat
author_facet Rania Mostafa A. Hassan
Yassir Edrees Almalki
Mohammad Abd Alkhalik Basha
Sharifa Khalid Alduraibi
Alshehri Hanan Hassan
Mervat Aboualkheir
Ziyad A. Almushayti
Alaa K. Alduraibi
Mona M. Amer
Ahmed M. Abdelkhalik Basha
Mona Mohammed Refaat
author_sort Rania Mostafa A. Hassan
collection DOAJ
description Understanding the consistency of pituitary macroadenomas is crucial for neurosurgeons planning surgery. This retrospective study aimed to evaluate the utility of diffusion-weighted imaging (DWI) and the apparent diffusion coefficient (ADC) as non-invasive imaging modalities for predicting the consistency of pituitary macroadenomas. This could contribute to appropriate surgical planning and therefore reduce the likelihood of incomplete resections. The study included 45 patients with pathologically confirmed pituitary macroadenomas. Conventional MRI sequences, DWIs, ADC maps, and pre- and post-contrast MRIs were performed. Two neuroradiologists assessed all of the images. Neurosurgeons assessed the consistency of the tumor macroscopically, and histopathologists examined it microscopically. The MRI findings were compared with postoperative data. According to the operative data, macroadenomas were divided into the two following categories based on their consistency: aspirable (n = 27) and non-aspirable tumors (n = 18). A statistically significant difference in DWI findings was found when comparing macroadenomas of different consistencies (<i>p</i> < 0.001). Most aspirable macroadenomas (66.7%) were hyperintense according to DWI and hypointense on ADC maps, whereas most non-aspirable macroadenomas (83.3%) were hypointense for DWI and hyperintense on ADC maps. At a cut-off value of 0.63 × 10<sup>−3</sup> mm<sup>2</sup>/s, the ADC showed a sensitivity of 85.7% and a specificity of 75% for the detection of non-aspirable macroadenomas (AUC, 0.946). The study concluded that DWI should be routinely performed in conjunction with ADC measurements in the preoperative evaluation of pituitary macroadenomas. This approach may aid in surgical planning, ensure that appropriate techniques are utilized, and reduce the risk of incomplete resection.
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spelling doaj.art-e621c57b888e4a0e861f775d0f15bde52024-03-12T16:41:57ZengMDPI AGDiagnostics2075-44182024-02-0114549310.3390/diagnostics14050493Predicting the Consistency of Pituitary Macroadenomas: The Utility of Diffusion-Weighted Imaging and Apparent Diffusion Coefficient Measurements for Surgical PlanningRania Mostafa A. Hassan0Yassir Edrees Almalki1Mohammad Abd Alkhalik Basha2Sharifa Khalid Alduraibi3Alshehri Hanan Hassan4Mervat Aboualkheir5Ziyad A. Almushayti6Alaa K. Alduraibi7Mona M. Amer8Ahmed M. Abdelkhalik Basha9Mona Mohammed Refaat10Department of Diagnostic Radiology, Faculty of Human Medicine, Zagazig University, Zagazig 44519, EgyptDivision of Radiology, Department of Internal Medicine, Medical College, Najran University, Najran 61441, Saudi ArabiaDepartment of Diagnostic Radiology, Faculty of Human Medicine, Zagazig University, Zagazig 44519, EgyptDepartment of Radiology, College of Medicine, Qassim University, Buraidah 52571, Saudi ArabiaInternal Medicine Department, College of Medicine, King Khalid University, Abha 62529, Saudi ArabiaDepartment of Radiology and Medical Imaging, College of Medicine, Taibah University, Madinah 42353, Saudi ArabiaDepartment of Radiology, College of Medicine, Qassim University, Buraidah 52571, Saudi ArabiaDepartment of Radiology, College of Medicine, Qassim University, Buraidah 52571, Saudi ArabiaDepartment of Neurology, Faculty of Human Medicine, Zagazig University, Zagazig 44519, EgyptFaculty of General Medicine, Saint Petersburg State University, Egypt Branch, Cairo 11646, EgyptDepartment of Diagnostic Radiology, Faculty of Human Medicine, Zagazig University, Zagazig 44519, EgyptUnderstanding the consistency of pituitary macroadenomas is crucial for neurosurgeons planning surgery. This retrospective study aimed to evaluate the utility of diffusion-weighted imaging (DWI) and the apparent diffusion coefficient (ADC) as non-invasive imaging modalities for predicting the consistency of pituitary macroadenomas. This could contribute to appropriate surgical planning and therefore reduce the likelihood of incomplete resections. The study included 45 patients with pathologically confirmed pituitary macroadenomas. Conventional MRI sequences, DWIs, ADC maps, and pre- and post-contrast MRIs were performed. Two neuroradiologists assessed all of the images. Neurosurgeons assessed the consistency of the tumor macroscopically, and histopathologists examined it microscopically. The MRI findings were compared with postoperative data. According to the operative data, macroadenomas were divided into the two following categories based on their consistency: aspirable (n = 27) and non-aspirable tumors (n = 18). A statistically significant difference in DWI findings was found when comparing macroadenomas of different consistencies (<i>p</i> < 0.001). Most aspirable macroadenomas (66.7%) were hyperintense according to DWI and hypointense on ADC maps, whereas most non-aspirable macroadenomas (83.3%) were hypointense for DWI and hyperintense on ADC maps. At a cut-off value of 0.63 × 10<sup>−3</sup> mm<sup>2</sup>/s, the ADC showed a sensitivity of 85.7% and a specificity of 75% for the detection of non-aspirable macroadenomas (AUC, 0.946). The study concluded that DWI should be routinely performed in conjunction with ADC measurements in the preoperative evaluation of pituitary macroadenomas. This approach may aid in surgical planning, ensure that appropriate techniques are utilized, and reduce the risk of incomplete resection.https://www.mdpi.com/2075-4418/14/5/493pituitary macroadenomaconsistencyMRIDWIADC
spellingShingle Rania Mostafa A. Hassan
Yassir Edrees Almalki
Mohammad Abd Alkhalik Basha
Sharifa Khalid Alduraibi
Alshehri Hanan Hassan
Mervat Aboualkheir
Ziyad A. Almushayti
Alaa K. Alduraibi
Mona M. Amer
Ahmed M. Abdelkhalik Basha
Mona Mohammed Refaat
Predicting the Consistency of Pituitary Macroadenomas: The Utility of Diffusion-Weighted Imaging and Apparent Diffusion Coefficient Measurements for Surgical Planning
Diagnostics
pituitary macroadenoma
consistency
MRI
DWI
ADC
title Predicting the Consistency of Pituitary Macroadenomas: The Utility of Diffusion-Weighted Imaging and Apparent Diffusion Coefficient Measurements for Surgical Planning
title_full Predicting the Consistency of Pituitary Macroadenomas: The Utility of Diffusion-Weighted Imaging and Apparent Diffusion Coefficient Measurements for Surgical Planning
title_fullStr Predicting the Consistency of Pituitary Macroadenomas: The Utility of Diffusion-Weighted Imaging and Apparent Diffusion Coefficient Measurements for Surgical Planning
title_full_unstemmed Predicting the Consistency of Pituitary Macroadenomas: The Utility of Diffusion-Weighted Imaging and Apparent Diffusion Coefficient Measurements for Surgical Planning
title_short Predicting the Consistency of Pituitary Macroadenomas: The Utility of Diffusion-Weighted Imaging and Apparent Diffusion Coefficient Measurements for Surgical Planning
title_sort predicting the consistency of pituitary macroadenomas the utility of diffusion weighted imaging and apparent diffusion coefficient measurements for surgical planning
topic pituitary macroadenoma
consistency
MRI
DWI
ADC
url https://www.mdpi.com/2075-4418/14/5/493
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