Assessment of the impact of application of single-photon emission computed tomography and SPECT-CT on lesion categorisation in bone scintigraphy
Autor: | Anita Brink, Garba H. Yunusa |
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Jazyk: | angličtina |
Rok vydání: | 2016 |
Předmět: |
lcsh:Medical physics. Medical radiology. Nuclear medicine
medicine.medical_specialty Radiological and Ultrasound Technology medicine.diagnostic_test business.industry lcsh:R895-920 Single-photon emission computed tomography Scintigraphy Inferior vena cava 030218 nuclear medicine & medical imaging Lesion 03 medical and health sciences Intervertebral disk 0302 clinical medicine Bone scintigraphy medicine.vein 030220 oncology & carcinogenesis Medicine Radiology Nuclear Medicine and imaging Subcutaneous port Radiology medicine.symptom business Nuclear medicine Technetium-99m |
Zdroj: | SA Journal of Radiology, Volume: 20, Issue: 1, Pages: 1-5, Published: 2016 South African Journal of Radiology, Vol 20, Iss 1, Pp e1-e5 (2016) |
Popis: | Objectives: To assess initial experience with the use of a new single-photon emission computed tomography-computed tomography (SPECT-CT) in the evaluation of lesions.Methods: The folder number, radiopharmaceutical used and type of scan of patients examined with a new Siemens T6 SPECT-CT between 02 April 2016 and 31 December 2013 were retrieved. The number of 99mTc-MDP bone scans was sufficient for a detailed analysis. The scans were re-processed and reported by the observer before he was given any clinical information. Whole body planar, whole body planar plus SPECT and whole body planar plus SPECT-CT images were assessed successively in three separate sessions at least 2 weeks apart. At each session, the certainties of detection, localisation and categorisation of each lesion were recorded.Results: A total of 539 lesions were seen on the whole body, SPECT and computed tomography (CT) images in 133 patients. The whole body images showed no lesions in 3 patients and 378 lesions in 130 patients. SPECT detected 122 additional lesions in 79 patients. Thirty-nine (12.2%) lesions were seen only on CT in 32 (24.1%) patients. For the 261 lesions seen on the planar images in the SPECT field of view, lesion detection was definite in 233 (89.3%), localisation definite in 151 (57.9%) and categorisation definite in 123 (47.1%) lesions. On the SPECT, definite lesion detection, localisation and categorisation were recorded, respectively, for 259 (99.2%), 228 (87.4%) and 176 (67.4%) of the 261 lesions. Lesion detection, localisation and categorisation certainties were definite for 100%, 99.1% and 94.7% of the SPECT-CT lesions, respectively.Conclusion: SPECT markedly improves lesion detection and localisation, and CT enhances lesion categorisation. |
Databáze: | OpenAIRE |
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