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Table 1 Characteristics of patients (n = 46)

From: Combined PET/CT with thoracic contrast-enhanced CT in assessment of primary cardiac tumors in adult patients

  All Benign tumors Malignant tumors P value
Number of patients 46 29 17  
Age (years) 44.8 (15.0–71.0) 45.4 (15.0–71.0) 43.7 (20.0–63.0) 0.711
Gender, n (%)     0.885
 Male 25 16 9  
 Female 21 13 8  
Blood glucose level (mmol/l) 5.4 5.2 5.6 0.062
18F-FDG injected dose (MBq) 409.8 407.1 414.4 0.792
Size (cm)     
 Length 4.2 (0.8–16.9) 3.4 (0.8–8.4) 5.2 (1.8–16.9) 0.006
 Width 3.5 (1.1–10.0) 3.4 (1.1–7.9) 4.2 (1.9–10.0) 0.085
 Height 3.9 (0.7–14.4) 3.5 (0.7–8.1) 6.9 (3.3–14.4) 0.003
Location     0.923
 Atrium 30 18 12  
  Left 10 7 3  
  Right 20 11 9  
 Ventricle 16 11 5  
  Left 4 3 1  
  Right 12 8 4  
Calcification 6 5 1  
ΔHU 20.5 (1.0–76.0) 17.0 (1.0–65.0) 26.0 (18.0–76.0) < 0.001
SUVmax_background 2.1 (1.3–3.0) 2.1 (1.3–2.9) 2.2 (1.8–3.0) 0.471
SUVmax_tumor 3.5 (0.8–20.4) 2.7 (0.8–4.9) 6.7 (3.5–20.4) < 0.001
SUVmean_tumor 2.4 (0.6–8.6) 2.0 (0.6–4.6) 4.3 (2.2–8.6) < 0.001
SUVmax_Glu_corrected 3.4 (0.7–22.8) 2.5 (0.7–5.7) 6.6 (3.4–22.8) < 0.001
TBR 1.7 (0.5–11.3) 1.3 (0.5–2.3) 3.2 (1.3–11.3) < 0.001
Pleural effusion 13 3 10 < 0.001
Pericardial effusion 16 3 13 < 0.001
Treatment and histopathology     
 Complete resection 35 28 7  
 Partial resection 4   4  
 Biopsy only 5   5  
 No histopathology 2 1* 1  
Newly diagnosed 42 26 16  
Recurrences 4 3 1  
Tumor classification, n (%)     
 Benign tumors   29   
  Myxoma   19   
  Hemangioma   4   
  Lipoma   3   
  Other   3   
 Malignant tumors    17  
  Sarcoma    12  
   Angiosarcoma    6  
   Leiomyosarcoma    2  
   Other    4  
  Lymphoma    2  
  Intermediate
  Malignant tumors
   2  
  Other    1  
Metastasis     
  Thoracic metastasis    5  
  Distant metastasis    1§  
  1. *One case of lipoma diagnosed by CT, without histopathology
  2. Recurrence of right ventricular myxoid malignant fibrous histiocytoma 1 year after resection, had no operation and no pathology
  3. Including two cases of intermediate tumors (including 1 Kaposiform hemangioendothelioma and 1 fibrous tumor)
  4. §Simultaneous intrathoracic and distant metastases in the one patient