Home

Welcome to the RAD Assistant!

Select a tool from the column on the left

Please contact Michael Magnetta, MD with questions.

Disclaimer:
The author makes no claims of the accuracy of the information contained herein; this information is for educational purposes only and is not a substitute for clinical judgment.

Adrenal Nodule

Unenhanced Density
60 Second Post Contrast Density
15 Minute Delayed Post Contrast Density
Result
Please make selection

Pulmonary Nodule

Size of Largest Nodule
Single or Multiple
Single Multiple
Composition
Solid Part Solid Ground Glass
Result
Please input measurement
Source:
MacMahon, H, et. al. Guidelines for Management of Incidental Pulmonary Nodules Detected on CT Images: From the Fleischner Society 2017. Radiology. 2017 Jul;284(1):228-243.

Ovarian Cyst

Size of Cyst:
Post menopausal or high risk for malignancy
Yes No
Composition
Simple
Hemorrhagic Endometrioma
Teratoma Indeterminate
Result
Please input measurement
Source:
Levine, D, et. al. Management of asymptomatic ovarian and other adnexal cysts imaged at US: Society of Radiologists in Ultrasound Consensus Conference Statement. Radiology. 2010 Sep;256(3):943-54

Hepatic Observation


Comparing to a prior scan?
Observation Maximum Dimension
Arterial Hyperenhancement?
Capsule and/or Washout?
Result

Please input valid size

Source:
Cherynak, V, et. al. Liver Imaging Reporting and Data System (LI-RADS) Version 2018: Imaging of Hepatocellular Carcinoma in At-Risk Patients. Radiology. 2018 Dec;289(3):816-830.

Residual lesion enhancements?
Result
Please make selection
Source:
Cherynak, V, et. al. Liver Imaging Reporting and Data System (LI-RADS) Version 2018: Imaging of Hepatocellular Carcinoma in At-Risk Patients. Radiology. 2018 Dec;289(3):816-830.

LI-RADS may be used in patients with cirrhosis, chronic hepatitis B viral infection or with current or prior HCC including adult liver transplant candidates and recipients posttransplant.

Do not apply in patients less than 18 years old, without cirrhosis due to congenital hepatic fibrosis, with cirrhosis due to a heridetary disorder such as heridetary hemorrhagic telangectasis, Budd-Chiari syndrome, chronic portal vein occlusion, cardiac congestion, or diffuse nodular regenerative hyperplasia.

Do not assign LI-RADS categories to path proven benign or malignant lesions.

Before you use this tool, consider if the scan is diagnostic (LR-NC), whether a lesion appears benign (LR-1, LR-2) or if the lesion appears malignant but not classified with this algorithm (LR-TIV and LR-M).

Thyroid Nodule


Size
Shape
Echogenicity
Composition
Margin
Echogenic Foci
Result

Please enter valid size

Sources:
1. Tessler, FN, et. al. Thyroid Imaging Reporting and Data System (TI-RADS): A User's Guide. Radiology. 2018 Apr;287(1):29-36.
2. Tessler, FN, et. al. ACR Thyroid Imaging, Reporting and Data System (TI-RADS): White Paper of the ACR TI-RADS Committee. J Am Coll Radiol. 2017 May;14(5):587-595.

Previous first maximum dimension? (PFMD)
Previous second maximum dimension? (PSMD)
Current first corresponding maximum dimension? (CFMD)
Current second corresponding maximum dimension? (CSMD)
Result

Please enter valid PFMD measurement

Sources:
1. Tessler, FN, et. al. Thyroid Imaging Reporting and Data System (TI-RADS): A User's Guide. Radiology. 2018 Apr;287(1):29-36.
2. Tessler, FN, et. al. ACR Thyroid Imaging, Reporting and Data System (TI-RADS): White Paper of the ACR TI-RADS Committee. J Am Coll Radiol. 2017 May;14(5):587-595.

Ellipsoid Volume

Ellipsoid 1

Measurement Unit:
Dimension A:
Dimension B:
Dimension C:

Ellipsoid 2 (optional)

Measurement Unit:
Dimension A:
Dimension B:
Dimension C:
Result

Please enter 3 dimensions for an ellipsoid

Pancreatic Cyst


High risk features?

Dilated pancreatic duct greater than 5 mm, change in duct caliber with abrupt terminating duct or upstream pancreatic atrophy, biliary obstruction/jaundice, mural nodule or solid component
Result

Please answer if high risk features

Elastography

Acute hepatitis, transaminitis, congestive heart disease, cholestasis or non-NPO status?
Median/IQR?
Vendor
Mean ARFI (m/s)
Result

Please enter measurement

Fibroid

Fibroid diagram

Procedural Guidelines