High-resolution T2-weighted cervical cancer imaging : a feasibility study on ultra-high-field 7.0-T MRI with an endorectal monopole antenna
| Autor: | Alexander J.E. Raaijmakers, Ronald P. Zweemer, J P Hoogendam, Maurice A.A.J. van den Bosch, Catalina S. Arteaga de Castro, Wouter B. Veldhuis, Dennis W. J. Klomp, René H.M. Verheijen, Irene M. L. van Kalleveen |
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| Přispěvatelé: | Medical Image Analysis |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Adult
medicine.medical_specialty Uterine cervical neoplasms Interventional magnetic resonance imaging Cervix Uteri Magnetic Resonance Imaging Interventional SDG 3 – Goede gezondheid en welzijn Sensitivity and Specificity 030218 nuclear medicine & medical imaging Cohort Studies Feasibility studies 03 medical and health sciences 0302 clinical medicine Magnetic resonance imaging SDG 3 - Good Health and Well-being 80 and over medicine Journal Article Humans Radiology Nuclear Medicine and imaging Prospective Studies Stage (cooking) Monopole antenna Aged Neuroradiology Aged 80 and over Cervical cancer Interventional medicine.diagnostic_test business.industry Ultrasound Rectum General Medicine Middle Aged medicine.disease Magnetic Resonance Imaging Antenna Radiology Nuclear Medicine and imaging 030220 oncology & carcinogenesis Neoplasm staging Female Radiology Antenna (radio) Artifacts business |
| Zdroj: | European Radiology, 27(3), 938. Springer Verlag European Radiology, 27(3), 938-945. Springer |
| ISSN: | 0938-7994 |
| Popis: | We studied the feasibility of high-resolution T2-weighted cervical cancer imaging on an ultra-high-field 7.0-T magnetic resonance imaging (MRI) system using an endorectal antenna of 4.7-mm thickness. A feasibility study on 20 stage IB1–IIB cervical cancer patients was conducted. All underwent pre-treatment 1.5-T MRI. At 7.0-T MRI, an external transmit/receive array with seven dipole antennae and a single endorectal monopole receive antenna were used. Discomfort levels were assessed. Following individualised phase-based B1 + shimming, T2-weighted turbo spin echo sequences were completed. Patients had stage IB1 (n = 9), IB2 (n = 4), IIA1 (n = 1) or IIB (n = 6) cervical cancer. Discomfort (ten-point scale) was minimal at placement and removal of the endorectal antenna with a median score of 1 (range, 0–5) and 0 (range, 0–2) respectively. Its use did not result in adverse events or pre-term session discontinuation. To demonstrate feasibility, T2-weighted acquisitions from 7.0-T MRI are presented in comparison to 1.5-T MRI. Artefacts on 7.0-T MRI were due to motion, locally destructive B1 interference, excessive B1 under the external antennae and SENSE reconstruction. High-resolution T2-weighted 7.0-T MRI of stage IB1–IIB cervical cancer is feasible. The addition of an endorectal antenna is well tolerated by patients. • High resolution T 2 -weighted 7.0-T MRI of the inner female pelvis is challenging • We demonstrate a feasible approach for T 2 -weighted 7.0-T MRI of cervical cancer • An endorectal monopole receive antenna is well tolerated by participants • The endorectal antenna did not lead to adverse events or session discontinuation |
| Databáze: | OpenAIRE |
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