| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Single photon emission computed tomography with computed tomography of liver using technetium 99m macroaggregated albumin (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Single photon emission computed tomography with computed tomography of whole body (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography arthrography of sacroiliac joint with contrast (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Electrocardiography gated computed tomography of thorax (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography of entire skeleton (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Positron emission tomography with computed tomography of liver using yttrium-90 microspheres | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Positron emission tomography with computed tomography using 11C-metomidate | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier |  | 
| Computed tomography angiography of vessels of abdominal wall (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Post mortem computed tomography (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier |  | 
| Injection of foot using computed tomography guidance (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Computed tomography of lower limb for arthroplasty planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography angiography of mesenteric artery (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Gated computed tomography for cardiac function with contrast (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Four dimensional computed tomography angiography of cerebrum (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Four dimensional computed tomography angiography of cerebrum (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Computed tomography triple phase study of abdomen and pelvis with contrast (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography triple phase study of abdomen and pelvis with contrast (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Computed tomography of transplanted liver (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography of transplanted liver with contrast (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Biopsy of transplanted liver using computed tomography guidance (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Computed tomography of transplanted small intestine (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography angiography of thorax and abdomen (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography angiography of thorax and abdomen (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Computed tomography portal venography of abdomen and pelvis with contrast | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography portal venography of abdomen and pelvis with contrast | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Computed tomography portal venography of abdomen and pelvis with contrast | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 3 | 
| Lumbar puncture using computed tomography guidance (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Percutaneous microwave ablation of lesion of pelvis using computed tomography guidance (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Gated computed tomography for complex congenital heart disease with contrast (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Single photon emission computed tomography using technetium 99m with computed tomography of thyroid (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Single photon emission computed tomography using iodine 123 meta-iodobenzylguanidine with computed tomography of thorax | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Single photon emission computed tomography using iodine 123 meta-iodobenzylguanidine with computed tomography of pelvis | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Single photon emission computed tomography using iodine 123 meta-iodobenzylguanidine with computed tomography of abdomen | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Single photon emission computed tomography using indium 111 labelled octreotide with computed tomography of abdomen | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Single photon emission computed tomography using indium 111 labelled octreotide with computed tomography of pelvis | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Single photon emission computed tomography using indium 111 labelled octreotide with computed tomography of neck | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Single photon emission computed tomography using gallium 67 with computed tomography of abdomen | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Single photon emission computed tomography using gallium 67 with computed tomography of pelvis | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Single photon emission computed tomography using indium 111 labelled octreotide with computed tomography of thorax | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Single photon emission computed tomography using gallium 67 with computed tomography of thorax | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography scanogram of spine (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography of urinary tract excretory phase with contrast (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography for patella tracking (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography for solid organ injury (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Low dose computed tomography of thorax (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of lumbosacral spine for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of breast with contrast for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of axilla with contrast for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of head with contrast for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of prostate with contrast for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of craniospinal axis for radiotherapy planning (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of oesophagus for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography with contrast for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of head and neck for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of head and neck for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Computerised tomography of head and neck with contrast for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of head and neck with contrast for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Computerised tomography of pelvis for brachytherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of prostate for brachytherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of thorax for brachytherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of lower leg for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of oesophagus with contrast for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of lower limb for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of thigh for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of abdomen for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of abdomen for radiotherapy planning with contrast (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of axilla for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of neck with contrast for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of thoracic spine for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of thorax with contrast for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of lumbosacral spine for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Computerised tomography of urinary bladder with contrast for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of cervical spine for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computerised tomography of craniospinal axis for radiotherapy planning (procedure) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Computerised tomography of pelvis with contrast for radiotherapy planning (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Single photon emission computed tomography using dimercaptosuccinic acid with computed tomography of kidney with contrast | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography of head, neck, abdomen and pelvis (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography of head, neck, abdomen and pelvis (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Computed tomography of head, neck, abdomen and pelvis with contrast (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography of head, neck, abdomen and pelvis with contrast (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Positron emission tomography with computed tomography of brain using florbetaben (18F) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Positron emission tomography with computed tomography of brain using florbetapir (18F) | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Positron emission tomography with computed tomography of brain using flutemetamol (18F) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Positron emission tomography with computed tomography gallium 68 prostate specific membrane antigen whole body uptake study | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Positron emission tomography with computed tomography gallium 68 dotatoc whole body uptake study | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Positron emission tomography with computed tomography gallium 68 dotanoc whole body uptake study | Method | True | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous irreversible electroporation ablation of tumour of kidney using computed tomography guidance (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Percutaneous irreversible electroporation ablation of tumour of lung using computed tomography guidance (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Percutaneous irreversible electroporation ablation of tumour of liver using computed tomography guidance (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Computed tomography of scaphoid (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography of cerebral ventricles (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography of head, neck, abdomen and pelvis (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 3 | 
| Computed tomography of head, neck, abdomen and pelvis (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 4 | 
| Computed tomography of head, neck, abdomen and pelvis with contrast (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 3 | 
| Computed tomography of head, neck, abdomen and pelvis with contrast (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 4 | 
| Computed tomography of whole body with contrast (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of fiducial marker into kidney using computed tomography guidance (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Positron emission tomography with computed tomography of whole body using 18F sodium fluoride (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Positron emission tomography with computed tomography fluorodeoxyglucose imaging of base of brain to mid-thigh (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 1 | 
| Positron emission tomography with computed tomography fluorodeoxyglucose imaging of base of brain to mid-thigh (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 2 | 
| Positron emission tomography with computed tomography fluorodeoxyglucose imaging of base of brain to mid-thigh (procedure) | Method | False | Computed tomography imaging - action | Inferred relationship | Existential restriction modifier | 3 |