Profile of patients referred for computed tomography, likely to be explored by scintigraphy imaging in a country with no nuclear medicine service: The case of Togo

Document Type : Original Article


1 Biophysic and Medical Imaging Departments, Campus Teaching Hospital, University of Lome, Togo

2 Radiology Department, Campus Teaching Hospital, University of Lome, Togo

3 UFR de Biophysique et Médecine Nucléaire, FSS Université de Cotonou, BP188, Cotonou, Benin


Introduction: Describe the profile of patients referred for computed tomography (CT) likely to be scanned with scintigraphy imaging in Togo.
Methods: Prospective study carried out from May 15 to August 15 2020 including patients referred for non-traumatic CT scans (excluding strokes) in all the radiology centres in Togo with operational CT scans. The good practice guide of the French Societies of Radiology (SFR) and Nuclear Medicine (SFMN) was used as a reference for case selection.
Results: A total of 328 patients, representing 14.6% of those referred for non-traumatic CT scans (excluding strokes) were concerned. The sex ratio was 0.74 and the average age 50.58 ± 19.02 years. The patients had a health insurance in 50% of cases and were civil servants in 62.5% of cases. They mainly came from the cardiology (6.7%) and oncology departments (6.1%). Most common explorations were chest-abdomen-pelvis CT scans (36.3%) and thorax angiography CT (22.9%). Pulmonary embolism (24.1%), breast and prostate cancer extension assessment (18.3%) were the most frequent indications. Scintigraphy was indicated mainly (85.37%) as a second line of exploration. The most concerned fields of nuclear medicine were nuclear oncology (26.2%), cardio-pneumology (25%) and nuclear neurology (20.1%). Scintigraphy imaging was of a better or the same grade of recommendation as CT scan in 53.7% of cases, and of a lower or the same dose class as CT scan in 90.2% of cases.
Conclusion: A significant number of patients referred for CT scans in Togo were likely to be explored by scintigraphy imaging, hence the need to create a nuclear medicine department there.


Main Subjects

  1. Arrival L. Medical imaging for the clinician. Paris: Elsevier Masson; 2012.
  2. Blondiaux E, Cochet A, Durand E, Kremer S, Montaudon M. Medical imaging. Paris: Elsevier Masson; 2012.
  3. French Society of Radiology and French Society of Nuclear Medicine. Guide de bon usage des examens médicales. Available from:
  4. Estates General of Nuclear Medicine. White paper on nuclear medicine. Méd Nucl. 2012;36:700-716.
  5. Adambounou K, Adjenou KV, Achy OB, Mossi KE, Gbande P, Adigo AMY, AgodaKoussema KL, N'dakena K. Knowledge and perception of nuclear medicine by Togolese doctors. Méd Nucl. 2015;39:e15-e20.
  6. Obioha FI. Nuclear medicine practice in Africa. West Afr J Radiol. 2008;15:22-27.
  7. Bathily AEL, Ndong D, Djgo M, Djgo M, Diop O, Diop Sow O, Gueye K. Problem of extraosseous fixations in skeletal scintigraphy imaging in 98 cases collected at the nuclear medicine department of the Grand Yoff General Hospital (HOGGY). Dakar Med. 2015;60(1):7-11.
  8. Fokoue F, El Mselmi S. Epidemiological profile and diagnostic contribution of bone scintigraphy in Pierre-Marie-Foix syndrome: about 15 patients. Méd Nucl. 2019;43(2):190-191.
  9. Amégbor K, Alfa AK, Darré T, Napo-Koura GA, Akpadza K. Aspects epidémiologiques et histopathologiques des cancers gynéco-mammaires au Togo. Med Trop. 2011;71(5):451-3.
  10. Tapsoba TL, Sanon H, Ouattara TF, Ouédraogo SJ, Gansonré KV. Assessment of the first six months of operation of the nuclear medicine department of the Yalgado Ouédraogo university hospital centre. Méd Nucl. 2012;36:514-17.
  11. Amoussou-Guenou KM, Fachinan OH, Gbénou S, Komongui DG, Houndetoungan GD. Place of scintigraphy and radiotherapy in medical evacuations outside Benin from 2006 to 2010, Méd Nucl. 2013;37:507-510.
  12. Hahn S, Heusner T, Kümmel S, Köninger A, Nagarajah J, Müller S et al. Comparison of FDG-PET/CT and bone scintigraphy for detection of bone metastases in breast cancer. Acta Radiologica. 2011;52:1009-1014.
  13. Caglara M, Kupika O, Karabulutb E, Høilund-Carlsenc PF. Detection of bone metastases in breast cancer patients in the PET/CT era: Do we still need the bone scan? Rev Esp Med Nucl Imagen Mol. 2016;35(1):3-11.
  14. Torii M, Toi M. Performance of fluorine-18 fluorodeoxyglucose (18F-FDG) dedicated breast PET for early breast cancer. Ann Breast Surg. 2018;2:19.
  15. Fleury V, Ferrer L, Colombié M, Rusu D, Le Thiec M, Kraeber-Bodéré F, Campion L, Rousseau C. Advantages of systematic trunk SPECT/CT to planar bone scan (PBS) in more than 300 patients with breast or prostate cancer. Oncotarget. 2018 Aug 3;9(60):31744-31752.
  16. Legal G, Righini M, Mottier D. Is there still a place for scintigraphy for the diagnosis of pulmonary embolism? J Intern Med. 2008; 29: 449-52.
  17. Le Roux PY, Rousset J, Le GAL G, Salaun PY. Diagnostic strategies in the face of a suspicion of pulmonary embolism: Current place and prospects of ventilation-perfusion lung scintigraphy. Méd Nucl. 2014;38:275-82.
  18. Sheen JJ, Haramati LB, Natenzon A, Ma H, Tropper P, Bader AS, Freeman LM, Bernstein PS, Moadel RM. Performance of low dose perfusion scintigraphy and CT pulmonary angiography for pulmonary embolism in pregnancy. Chest. 2018;153(1):152-160.
  19. Miles S, Rogers KM, Thomas P, Soans B, Attia J, Abel C, Holt E, D'Este CA, Hensley MJ. A comparison of single-photon emission CT lung scintigraphy and CT pulmonary angiography for the diagnosis of pulmonary embolism. Chest. 2009 Dec;136(6):1546-1553.
  20. Momin MA, Abdullah MN, Reza MS. Comparison of relative renal functions calculated with 99mTc-DTPA and 99m Tc-DMSA for kidney patients of wide age ranges. Physica Medica. 2018;45:99-105.
  21. Santoro D, Zappulla Z, Alibrandi A, Andulajevic MT, Licari M, Baldari S. Cross-Sectional Evaluation of Kidney Function in Hospitalized Patients: Estimated GFR Versus Renal Scintigraphy. Kidney Blood Press Res. 2014;39:668-676.
  22. Adambounou K, Djigo SM, Thierry KI, Adigo A M, Mbodj M, Ndoye E O, Tapsoba T L. Contribution of scintigraphic imagery in the exploration of child nephro-uropathy in Dakar. J Afr Imag Méd. 2017;9(4):169-174.