FetalCal vs SonoCue

FetalCal — Fetal Assessment Toolkit FetalCal is a clinical support application that processes user-entered fetal ultrasound measurements to calculate biometry parameters, Doppler indices, and MCA MoM values. It is designed to assist healthcare professionals in organizing, reviewing, and documenting fetal assessment data. The application supports calculation workflows by applying established formulas and reference data to user-provided inputs. Overview: FetalCal enables users to enter fetal measurements and Doppler values to generate calculated indices such as estimated fetal weight, centiles, z-scores, and ratios. It reduces the need for manual calculations and reference lookups. Functionality: Users enter fetal ultrasound measurements, including head circumference (HC), abdominal circumference (AC), femur length (FL), and Doppler values (UA, MCA, CPR, UtA, DV). The application processes these inputs to generate: • Estimated fetal weight, centiles, and z-scores. • Doppler indices, including umbilical artery, middle cerebral artery, uterine arteries, and related ratios. • MCA peak systolic velocity converted to MoM Results are presented in a structured format. All calculations are based on user-entered data; the application does not acquire or generate measurements independently. Modules: Biometry • Input: HC, AC, FL. • Output: estimated fetal weight (EFW), centiles, z-scores. • Visual categorization of results. Doppler • Input: Doppler measurements PI – UA, MCA, CPR, UtA, DV • Output: calculated indices and percentiles. MCA MoM • Input: MCA peak systolic velocity. • Output: MoM value with categorized interpretation. Output and Use • Structured summary of calculated values. • Supports documentation and reporting workflows. • Data can be saved and reviewed within the application. • Export options available for sharing or record-keeping. Key Characteristics • Operates without requiring an internet connection. • Single data entry workflow across modules. • Stores user-entered assessments locally and allows review of saved data. Intended Use This application is intended for use by healthcare professionals, including radiologists, sonographers, obstetric care providers, and maternal-fetal medicine specialists. Important Information: • This application is intended for clinical support and educational purposes only. • Clinical decisions should be made by qualified professionals using appropriate judgment and standard guidelines. • It should not be used as a sole basis for medical decision-making. • Users should rely on their clinical expertise and institutional protocols. • This application does not replace standard clinical workflows or institutional protocols. Monetization: There are no in-app purchases, subscriptions, or external payment mechanisms within the application. References Calculations are based on established medical literature and commonly used reference standards in fetal medicine. BIOMETRY MODULE • Estimated Fetal Weight (EFW) using Hadlock 1985 formula. • Z-scores and centiles based on Snijders & Nicolaides 1994. • EFW percentiles based on Nicolaides 2018 reference tables. • Snijders RJ, Nicolaides KH. Fetal biometry at 14-40 weeks' gestation. • Hadlock FP, Harrist RB, Martinez-Poyer J. In utero analysis of fetal growth: a sonographic weight standard. • Nicolaides KH, Wright D, Syngelaki A, Wright A, Akolekar R. Fetal Medicine Foundation fetal and neonatal population weight charts. DOPPLER MODULE • Arduini DJ Perinat Med 1990; 18:165. • Baschat AA UOG 2003; 21:124. • Mari GN Engl J Med 2000; 342:9. • Hecher K UOG 1994; 4:381. • Rizzo G UOG 1996; 7:401. MCA MOM MODULE • Mari, G., Abuhamad, A. Z., Cosmi, E., Segata, M., Altaye, M., Akiyama, M. • Mari, G., Norton, M. E., Stone, J., Berghella, V., Sciscione, A. C., Tate, D., Schenone, M. H.

SonoCue is a clinical reference tool built for the scan room — for credentialed diagnostic medical sonographers (RDMS or equivalent) and ultrasound students. Not for patient use, not medical advice, not a diagnostic device. Created by Tricia Henderson, RDMS — a travel sonographer with nearly 30 years of clinical experience. Every finding in the database was authored and reviewed by her. WHAT'S INSIDE DIFFERENTIAL FINDER Searchable database of ultrasound findings across Obstetric, Gynecologic, Abdominal, Vascular, Neonatal, and Superficial Structures. Each entry includes: • Threshold or measurement • Common associations • Next scan steps • Clinical pearls • Severity classification (normal variant, watch, abnormal, critical) • Last-reviewed date REFERENCE TOOLS Society-cited formulas you reach for daily, in one offline-first app: • Gestational age tables (Hadlock 1984) • Estimated fetal weight calculator (Hadlock 4-parameter, 1991) • Biophysical profile (BPP) scorer (Manning, 1980) • Umbilical artery Doppler norms (Acharya, 2005) • Cervical length stratification • Amniotic fluid index (Phelan / Magann) Every calculator shows its formula source on screen. AI ANALYZE Describe what you see — get structured differential considerations to evaluate. Not a diagnosis, not a substitute for clinical judgment. Constrained by safety guardrails: refuses dosing requests, refuses non-sonography modalities, refuses anything framed as a definitive diagnosis. Capped at 5 uses per account per day. Every response is labeled AI-generated, shows its reasoning, and can be flagged for review. WHO IT'S FOR SonoCue is exclusively for trained ultrasound professionals — credentialed sonographers, ultrasound students, sonography educators, and physician sonographers. It is not designed for, and may not be used by, patients or untrained individuals. PRIVACY SonoCue is designed to actively prevent Protected Health Information (PHI) from being processed. Input text is sanitized for PHI patterns on your device and again on our server before any AI provider receives it. We do not store input text or AI responses tied to your account. We are not a HIPAA-covered service — see in-app Privacy Policy for details. OFFLINE-FIRST Differential Finder, Reference Tools, and Bookmarks all work offline. Once installed, you don't need a connection for the things you reach for during a scan. ABOUT THE BUILDER SonoCue is an independent app created by Pixel & Pulse Travelers. It is not affiliated with any imaging vendor, hospital system, or society. Questions or feedback: sonocue@pixelandpulsetravelers.com