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Magnetic resonance diffusion-weighted imaging in diagnostics of primary fallopian tube carcinoma – is it useful?
PURPOSE: Primary fallopian tube carcinoma (PFTC) is the rarest form of female genital malignancy. The imaging applied for suspected adnexal masses includes transvaginal ultrasound (US), computed tomography (CT), and magnetic resonance imaging (MRI), but the vast majority of PFTC is recognised intrao...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Termedia Publishing House
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6047086/ https://www.ncbi.nlm.nih.gov/pubmed/30038695 http://dx.doi.org/10.5114/pjr.2018.75642 |
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author | Grabowska-Derlatka, Laretta Szeszkowski, Wojciech Sieńko, Jacek Derlatka, Paweł |
author_facet | Grabowska-Derlatka, Laretta Szeszkowski, Wojciech Sieńko, Jacek Derlatka, Paweł |
author_sort | Grabowska-Derlatka, Laretta |
collection | PubMed |
description | PURPOSE: Primary fallopian tube carcinoma (PFTC) is the rarest form of female genital malignancy. The imaging applied for suspected adnexal masses includes transvaginal ultrasound (US), computed tomography (CT), and magnetic resonance imaging (MRI), but the vast majority of PFTC is recognised intraoperatively. MATERIAL AND METHODS: The study group consisted of seven women with postoperatively histopathological diagnosis of PFTC. To recognise characteristic findings for PFTC, retrospective analysis of preoperative MRI was performed. All patients underwent MRI of the pelvis and abdomen using a 1.5T MR system. Based on the results of the above imaging, suspected adnexal masses were recognised. MRI protocol contained T2-weighted images, fat-suppressed T2-weighted, T2-TIRM, DW EPI, pre- and postcontrast dynamic 3D T1 GRE in transverse orientation, with diffusion weightings of 0, 50, 100, 150, 200, 400, 800, and 1200 s/mm2. Regions of interest were outlined by a radiologist, who documented the character of adnexal masses on diffusion-weighted (DW) images and apparent diffusion coefficient (ADC) maps. RESULTS: In all seven patients with PFTC unilateral tumour was found. On all DW images (with β values of 0, 50, 100, 150, 200, 400, 800, and 1200 s/mm2) the mean signal intensities of solid parts of tumour were significantly higher than the mean signal intensities of normal ovarian tissue (p = 0.0001). There were no statistically significant differences between eight β values applied for ADC calculations. CONCLUSIONS: Preoperative diagnostics of PFTC is difficult and mainly based on morphological features. Previous research did not show characteristics of PFTC in post-contrast dynamic imaging. In our material a clear increasing of signal intensity in DW imaging occurred independently of the β value. |
format | Online Article Text |
id | pubmed-6047086 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Termedia Publishing House |
record_format | MEDLINE/PubMed |
spelling | pubmed-60470862018-07-23 Magnetic resonance diffusion-weighted imaging in diagnostics of primary fallopian tube carcinoma – is it useful? Grabowska-Derlatka, Laretta Szeszkowski, Wojciech Sieńko, Jacek Derlatka, Paweł Pol J Radiol Original Paper PURPOSE: Primary fallopian tube carcinoma (PFTC) is the rarest form of female genital malignancy. The imaging applied for suspected adnexal masses includes transvaginal ultrasound (US), computed tomography (CT), and magnetic resonance imaging (MRI), but the vast majority of PFTC is recognised intraoperatively. MATERIAL AND METHODS: The study group consisted of seven women with postoperatively histopathological diagnosis of PFTC. To recognise characteristic findings for PFTC, retrospective analysis of preoperative MRI was performed. All patients underwent MRI of the pelvis and abdomen using a 1.5T MR system. Based on the results of the above imaging, suspected adnexal masses were recognised. MRI protocol contained T2-weighted images, fat-suppressed T2-weighted, T2-TIRM, DW EPI, pre- and postcontrast dynamic 3D T1 GRE in transverse orientation, with diffusion weightings of 0, 50, 100, 150, 200, 400, 800, and 1200 s/mm2. Regions of interest were outlined by a radiologist, who documented the character of adnexal masses on diffusion-weighted (DW) images and apparent diffusion coefficient (ADC) maps. RESULTS: In all seven patients with PFTC unilateral tumour was found. On all DW images (with β values of 0, 50, 100, 150, 200, 400, 800, and 1200 s/mm2) the mean signal intensities of solid parts of tumour were significantly higher than the mean signal intensities of normal ovarian tissue (p = 0.0001). There were no statistically significant differences between eight β values applied for ADC calculations. CONCLUSIONS: Preoperative diagnostics of PFTC is difficult and mainly based on morphological features. Previous research did not show characteristics of PFTC in post-contrast dynamic imaging. In our material a clear increasing of signal intensity in DW imaging occurred independently of the β value. Termedia Publishing House 2018-04-20 /pmc/articles/PMC6047086/ /pubmed/30038695 http://dx.doi.org/10.5114/pjr.2018.75642 Text en Copyright © Polish Medical Society of Radiology 2018 https://creativecommons.org/licenses/by-nc-nd/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial-No Derivatives 4.0 International (CC BY-NC-ND 4.0). License allowing third parties to download articles and share them with others as long as they credit the authors and the publisher, but without permission to change them in any way or use them commercially. |
spellingShingle | Original Paper Grabowska-Derlatka, Laretta Szeszkowski, Wojciech Sieńko, Jacek Derlatka, Paweł Magnetic resonance diffusion-weighted imaging in diagnostics of primary fallopian tube carcinoma – is it useful? |
title | Magnetic resonance diffusion-weighted imaging in diagnostics of primary fallopian tube carcinoma – is it useful? |
title_full | Magnetic resonance diffusion-weighted imaging in diagnostics of primary fallopian tube carcinoma – is it useful? |
title_fullStr | Magnetic resonance diffusion-weighted imaging in diagnostics of primary fallopian tube carcinoma – is it useful? |
title_full_unstemmed | Magnetic resonance diffusion-weighted imaging in diagnostics of primary fallopian tube carcinoma – is it useful? |
title_short | Magnetic resonance diffusion-weighted imaging in diagnostics of primary fallopian tube carcinoma – is it useful? |
title_sort | magnetic resonance diffusion-weighted imaging in diagnostics of primary fallopian tube carcinoma – is it useful? |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6047086/ https://www.ncbi.nlm.nih.gov/pubmed/30038695 http://dx.doi.org/10.5114/pjr.2018.75642 |
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