Abdominal ultrasound training

Lesson 1 • Pulse-Echo Imaging Principles

Describes how transmitted pulses and returning echoes construct B-mode images. Links timing and amplitude data to spatial image mapping.

Lesson 2 • Doppler Principles Overview

Introduces continuous wave, pulsed wave, and colour Doppler physics. Establishes conceptual base for vascular assessment in later chapters.

Lesson 3 • Sound Wave Fundamentals

Covers frequency, wavelength, amplitude, and propagation speed in tissue. Anchors all subsequent image interpretation to physical principles.

Lesson 4 • Beam Formation and Resolution

Examines axial, lateral, and elevational resolution and their determinants. Prepares learners to optimise settings for diagnostic clarity.

Lesson 1 • Gain and Time-Gain Compensation

Teaches overall gain, TGC sliders, and auto-gain functions for uniform brightness. Directly impacts diagnostic confidence across tissue depths.

Lesson 2 • Harmonic Imaging and Compound Scanning

Explains tissue harmonic imaging and spatial compounding for artefact reduction. Improves image quality in challenging body habitus patients.

Lesson 3 • Depth, Zoom, and Focus Controls

Covers depth setting, focal zone placement, and zoom modes for target structures. Ensures organs of interest fill the image optimally.

Lesson 4 • Measurement Tools and Calipers

Demonstrates electronic caliper use, area tracing, and volume calculation methods. Accurate measurements underpin clinical reporting and follow-up comparisons.

Lesson 1 • Doppler-Specific Artefacts

Identifies aliasing, flash artefact, and spectral broadening in Doppler modes. Ensures accurate vascular flow interpretation in abdominal studies.

Lesson 2 • Acoustic Enhancement and Shadowing

Explains posterior acoustic enhancement behind fluid and shadowing behind calcifications. These artefacts are diagnostically exploited to characterise lesions.

Lesson 3 • Reverberation and Ring-Down Artefacts

Identifies reverberation, comet-tail, and ring-down patterns and their tissue sources. Distinguishes artifactual echoes from true pathological structures.

Lesson 4 • Anisotropy and Slice Thickness Artefacts

Addresses angle-dependent echogenicity and partial volume averaging effects. Critical for accurate tendon and small structure characterisation.

Lesson 1 • Coupling Gel and Infection Control

Covers gel application, transducer disinfection, and probe cover use. Maintains patient safety and equipment integrity across all examinations.

Lesson 2 • Standard Scanning Planes

Defines sagittal, transverse, and oblique imaging planes for abdominal organs. Consistent plane use enables reproducible measurements and comparison studies.

Lesson 3 • Systematic Survey Protocol

Establishes a structured organ-by-organ scanning sequence for complete examination. Prevents missed pathology through disciplined, repeatable workflow.

Lesson 4 • Transducer Handling and Ergonomics

Teaches grip technique, probe pressure, and operator posture to prevent injury. Ergonomic habits sustain scanning quality across long clinical sessions.

Lesson 1 • Spleen, Kidneys, and Adrenals

Defines normal size, echogenicity, and architecture of spleen, kidneys, and adrenal glands. Enables confident identification of organomegaly and structural anomalies.

Lesson 2 • Gallbladder and Biliary System

Describes normal gallbladder size, wall thickness, and bile duct calibre. Provides measurement baselines critical for biliary pathology assessment.

Lesson 3 • Liver Anatomy and Echogenicity

Identifies hepatic lobes, segments, vasculature, and normal parenchymal echogenicity. Establishes the baseline for detecting hepatic pathology in later chapters.

Lesson 4 • Aorta, IVC, and Mesentery

Identifies normal calibre and wall appearance of major abdominal vessels and mesentery. Prepares learners for vascular and bowel pathology recognition.

Lesson 1 • Renal and Adrenal Pathology

Covers hydronephrosis, renal cysts, stones, masses, and adrenal lesions. Teaches Bosniak-equivalent cyst complexity grading on ultrasound.

Lesson 2 • Pancreatic Pathology Assessment

Covers acute and chronic pancreatitis, pseudocysts, and pancreatic ductal adenocarcinoma. Addresses scanning challenges and secondary vascular involvement signs.

Lesson 3 • Hepatic Pathology Recognition

Covers fatty liver, cirrhosis, hepatitis, cysts, haemangiomas, and malignant lesions. Teaches echogenicity grading and lesion characterisation criteria.

Lesson 4 • Splenic Pathology Identification

Identifies splenomegaly causes, infarcts, cysts, abscesses, and lymphomatous infiltration. Correlates splenic findings with systemic disease patterns.

Lesson 1 • Aorta and Iliac Artery Evaluation

Teaches aortic diameter measurement, aneurysm detection, and iliac artery assessment. Establishes size thresholds and surveillance criteria for clinical decision-making.

Lesson 2 • Inferior Vena Cava and Collaterals

Evaluates IVC calibre, compressibility, thrombosis, and portosystemic collateral vessels. IVC assessment informs volume status and venous obstruction diagnosis.

Lesson 3 • Hepatic Artery and Vein Doppler

Assesses hepatic artery resistive index and hepatic vein waveform morphology. Waveform changes indicate hepatic parenchymal disease and right heart pathology.

Lesson 4 • Portal Venous System Assessment

Evaluates portal vein calibre, flow direction, velocity, and thrombosis. Portal haemodynamics directly reflect hepatic disease severity and guide management.

Lesson 1 • Incidental Findings Management

Guides appropriate reporting and follow-up recommendations for incidental lesions. Prevents both under-reporting of significant findings and over-investigation of benign ones.

Lesson 2 • Elements of a Diagnostic Report

Defines required report components: indication, technique, findings, and impression. Structured reporting reduces ambiguity and supports clinical decision-making.

Lesson 3 • Image Documentation and Archiving

Covers required image captures, labelling standards, and PACS integration workflow. Complete image archives support quality review and medicolegal requirements.

Lesson 4 • Measurement Documentation Standards

Establishes conventions for recording organ dimensions, lesion size, and Doppler values. Consistent documentation enables reliable longitudinal comparison.