Female pelvic bone marrow: serial MR imaging before, during, and after radiation therapy
| Autor: | Hans H. Lien, A. Skjonsberg, V. Blomlie, Einar K Rofstad, K. Tvera |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Adult
Pathology medicine.medical_specialty Sacrum medicine.medical_treatment Uterus Uterine Cervical Neoplasms Inversion Time Bone Marrow Medicine Humans Radiology Nuclear Medicine and imaging Pelvic Bones Aged Lumbar Vertebrae medicine.diagnostic_test business.industry Magnetic resonance imaging Middle Aged Mr imaging Magnetic Resonance Imaging Radiation therapy medicine.anatomical_structure In utero Female Bone marrow business Complication Nuclear medicine |
| Zdroj: | Radiology. 194(2) |
| ISSN: | 0033-8419 |
| Popis: | To study early changes in irradiated pelvic and adjacent nonirradiated bone marrow with T1-weighted magnetic resonance (MR) and short inversion time inversion-recovery (STIR) imaging.The bone marrow of 31 women with advanced cervical carcinoma was studied in 161 MR examinations before, during, and 7 weeks after radiation therapy. Two radiologists visually evaluated the marrow signal intensity (MSI) on T1-weighted and STIR images.Changes in irradiated and adjacent nonirradiated marrow were shown on T1-weighted images in 31 (100%) and 18 (58%) of the 31 patients, respectively. MSI changes on images were observed as early as 8 days after the start of radiation therapy and occurred more frequently in irradiated than in adjacent nonirradiated marrow. In the irradiated regions, a complete fatty marrow was seen on T1-weighted images obtained 6-8 weeks after the start of radiation therapy in 28 (90%) of the 31 patients.T1-weighted and STIR images obtained during and soon after radiation therapy complement each other in showing changes in bone marrow. |
| Databáze: | OpenAIRE |
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