RAD IQ AI - Contrast Planner

RAD IQ

Universal Contrast Planner

Created by Dr. Sharad Maheshwari, imagingsimplified@gmail.com

Patient Data

Pediatric Mode

Weight (kg)

Height (cm)

SCr (mg/dL)

Age (years)

Sex Male Female

Body Habitus Average Slim Large

Prior Contrast Reaction? None Mild (e.g., hives) Moderate (e.g., diffuse hives, wheezing) Severe (e.g., anaphylaxis)

IV Cannula Gauge Not Specified 18G (Green) 20G (Pink) 22G (Blue)

Clinical Risk Factors

Patient on Metformin?

Diabetes

Congestive Heart Failure

Hypertension

On Nephrotoxic Drug?

Adult CT Parameters

Location

kVp

Iodine Conc 300 mgI/mL 350 mgI/mL 370 mgI/mL 400 mgI/mL

Bolus Strategy

Scan Duration (s)

Tubing Volume (mL)

CV/eGFR Warning 5.1 (High Risk) 3.7 (CIN Risk) 3.0 (Upper Limit) 2.0 (Safest)

Dual Energy Scan

Pediatric CT Parameters

Iodine Conc 300 mgI/mL 350 mgI/mL

Tubing Volume (mL)

MRI Parameters

Agent Type Macrocyclic (Safer) Linear (High-Risk)

Concentration

Plan — Final Numbers

BMI: - | BSA: - m²

eGFR
-

Enter patient data and compute plan.

Reasoning

Kilovolt Peak (kVp)

Tube voltage. Lower kVp (e.g., 100, 80) increases the brightness of iodine, allowing for a reduced contrast dose. Higher kVp is used for larger patients to reduce noise.

Tubing Volume

The volume of the injector tubing. Setting the Saline Chaser to match this volume ensures all contrast is flushed into the patient, maximizing efficiency.

MRI Agent Type

Macrocyclic: Newer agents where the gadolinium ion is held securely in a molecular cage. Much lower risk of NSF.
Linear: Older agents with a less stable, chain-like structure. Higher risk of gadolinium release and NSF, especially in patients with low eGFR.

CV to eGFR Ratio Calculator

A measure of renal risk. A higher ratio increases the risk of Contrast-Induced Nephropathy (CIN). You select the safety threshold you want to be warned about.

Contrast Vol (mL):

eGFR:

Calculated Ratio: -

For educational use only. Not for clinical decision-making.