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The value this algorithm would add is reproducible anatomic volumes and speed of segmentation in patients with a liver mass undergoing pre-operative surgical planning, in liver donors, and in patients with chronic liver disease undergoing CT imaging for staging of liver fibrosis. |
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50-year-old-male patient with a single 3 cm HCC in the right lobe. Given proximity to the vascular pedicle the surgeon is requesting volume measurements of the right and left lobes before resection.
36-year-old male potential liver donor undergoing pre-operative planning. 55-year-old female with chronic hepatitis C virus has elevated liver function tests, and there is a clinical need to undergo staging of hepatic fibrosis. |
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A patient is identified by the primary surgical team as a candidate for hepatic resection. Arterial and portal venous phase CT images of the liver are uploaded to the AI program. The AI automatically segments the various liver segments. 3D reconstructions are generated. The liver segmental volumes are extracted individually with automated calculations of total liver, right lobe, left lobe, and the segmental volume ratio (segments I-III relative to IV-VIII). A radiologist reviews the segmentations and adjusts / edits as needed. A report is generated and includes the metrics and key images. The volumetric data and report are sent to the PACS. Surgical planning and reassurance is performed using this data to ensure that the patient is an adequate candidate for resection. |
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Procedures |
CT |
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View(s) |
Contrast enhanced series of CT |
|
Age |
Pediatric 0-17 years old and Adult 18-75 |
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Confounders |
Prior surgical resection, metallic clips, poor image quality, motion artifact, unexpected patient positioning |
DICOM Study
|
Procedure |
CT |
|
Views |
Contrast enhanced series of CT |
|
Data Type |
DICOM |
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Modality |
CT |
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Body Region |
Abdomen |
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Anatomic Focus |
Liver |
Hepatic tumor location
|
RadElement ID |
RDE1274 |
|
Definition |
Detect tumor location |
|
Data Type |
Categorical |
|
Value Set |
|
|
Units |
N/A |
Volume of entire liver
|
RadElement ID |
RDE1275 |
|
Definition |
volume of entire liver |
|
Data Type |
Numeric |
|
Value Set |
|
|
Units |
ml |
Volume of right liver lobe
|
RadElement ID |
RDE1276 |
|
Definition |
volume of right liver lobe |
|
Data Type |
Numeric |
|
Value Set |
|
|
Units |
ml |
Volume of left liver lobe
|
RadElement ID |
RDE1277 |
|
Definition |
volume of left liver lobe |
|
Data Type |
Numeric |
|
Value Set |
|
|
Units |
ml |
Volume of tumor
|
RadElement ID |
RDE1278 |
|
Definition |
volume of tumor |
|
Data Type |
Numeric |
|
Value Set |
|
|
Units |
ml |
This information can also be used to evaluate tumor burden.
We can also extrapolate the data to follow up cases in the development of fibrosis or cirrhosis.