Clinical Situation, Imaging Findings, and Bacteriologic Findings for Each Scintigraphic Procedure
Cause of referral | Procedure no. | Duration of LVAD at time of imaging (d) | Scanning result | Final diagnosis and outcome | Leukocyte scintigraphy result for device-related infection | |
---|---|---|---|---|---|---|
Planar | SPECT/CT | |||||
Diagnosis and localization of infection | Patient 1, scan 1 | 126 | Positive, right flank epigastrium | Positive. right flank epigastrium along cable | Deep and exit-site infection (S. aureus), antibiotic treatment | True-positive |
Patient 2, scan 1 | 692 | Negative | Negative | No infection; transplantation (sterile surgical samples) | True-negative | |
Patient 3, scan 1 | 330 | Positive, right flank | Positive, percutaneous site | Exit-site infection (Corynebacterium); recovery after 157 d of antibiotic treatment | True-positive | |
Patient 3, scan 2 | 701 | Negative for device-related infection; cervicofacial abnormal focus | Negative | Tonsillitis; recovery after 14 d of oral antibiotic treatment | True-negative | |
Patient 4, scan 1 | 52 | Positive, right flank | Positive, percutaneous site | Exit-site infection (S. aureus); antibiotic treatment | True-positive | |
Patient 5, scan 1 | 57 | Negative | Positive, percutaneous site, lung, and epigastrium | Pneumonia and epigastric cable infection (Klebsiella oxytoca); antibiotic treatment | True-positive | |
Patient 6, scan 1 | 188 | Positive, right flank | Positive, percutaneous site | Exit-site infection (S. aureus); antibiotic treatment | True-positive | |
Patient 7, scan 2 | 518 | Positive | Positive | Previous exit-site infection (S. aureus); recovery after 23 d of antibiotic treatment | True-positive | |
Evaluation of antibiotic efficacy | Patient 1, scan 2 | 225 | Positive, right flank epigastrium | Positive, right flank epigastrium along cable | Failure of 99 d of antibiotic treatment; transplantation | True-positive |
Patient 4, scan 2 | 412 | Negative | Negative | Recovery after 60 d of antibiotic treatment | True-negative | |
Patient 5, scan 2 | 418 | Negative for device-related infection; cervicofacial abnormal focus | Negative | Recovery after 84 d of antibiotic treatment | True-negative | |
Patient 7, scan 1 | 53 | Negative | Negative | Previous exit-site infection (S. aureus); recovery after 23 d of antibiotic treatment | True-negative | |
Patient 8, scan 1 | 610 | Negative | Positive, percutaneous site | Exit-site infection (S. aureus); failure of 212 d of antibiotic treatment; transplantation | True-positive |