Complete Abdominal Ultrasound Reporting System: An Organ-by-Organ Review and Writing Guide
A practical reporting structure that defines the scope of a complete abdominal ultrasound, reduces omissions, and makes technical limitations visible.
RadPhrases Editorial Team5 min read
REPORTING SYSTEMATICS / ULTRASOUND
A practical reporting structure that defines the scope of a complete abdominal ultrasound, reduces omissions, and makes technical limitations visible.
“Complete abdomen” requires the examination scope to be defined first
The scope of a complete abdominal ultrasound may differ between institutions. Some protocols cover the upper abdomen and retroperitoneal structures, while others also include a basic assessment of the bladder and female or male pelvis. Before writing the report, confirm the actual scope of the requested examination, the patient’s preparation, and the images obtained.
Ultrasound is sensitive to operator technique, patient anatomy, and technical conditions. Bowel gas, obesity, inability to position the patient because of pain, inadequate fasting, or suboptimal bladder filling may limit assessment of some structures. Such limitations should not be dismissed with a generic sentence at the end of the report; clearly identify which organ or region was affected and to what extent.
Related calculators
Browse the other checklists, phrase sets, and systematic approaches in this topic.
Read the indication. Information such as pain location, cholestasis, hematuria, elevated liver enzymes, known malignancy, or a lesion under surveillance changes the focus of the examination.
Check patient preparation. Fasting status, bladder filling, and prior procedures or surgery affect image quality and interpretation.
Open prior examinations. Cysts, solid lesions, biliary duct caliber, hydronephrosis, and organ size should be assessed comparatively in particular.
Define the scope. Ensure that the report matches which portions of the upper abdomen, retroperitoneum, bladder, and pelvis are included in the protocol.
Suggested anatomic review sequence
There is no single correct sequence. The following is an example that progresses from the upper abdomen to the pelvis and translates readily into a report:
Liver: Size and contour, parenchymal echogenicity and homogeneity, focal lesions, intrahepatic vessels, and, according to the clinical question, the portal and hepatic veins.
Gallbladder and bile ducts: Distention, luminal contents, wall, surrounding tissues, sonographic tenderness, and the appearance of the intrahepatic and extrahepatic ducts. Measurements should be interpreted in the context of age, clinical findings, and surgical history.
Pancreas: Visualized portions of the head, body, and tail; parenchyma, duct, and surrounding tissues. If a portion is not visualized, state the reason clearly.
Spleen: Size, contour, parenchyma, and focal lesions.
Kidneys: Size, contour, parenchymal thickness, and echogenicity of both kidneys; hydronephrosis, calculi, cysts, or solid lesions. Laterality should be maintained for every finding.
Retroperitoneal vessels: Segments of the aorta and inferior vena cava included in the protocol; caliber and flow assessment when indicated.
Urinary bladder: Degree of filling, wall, lumen, and postvoid residual when required. Inadequate filling may limit assessment.
Pelvic organs: Depending on the order and protocol, the uterus and adnexa or the prostate and seminal vesicles; a separate targeted ultrasound may be required for this region.
Peritoneal cavity: Free fluid, collections, and regions targeted according to the clinical question.
Important distinction “Not visualized” is not the same as “normal.” If the pancreatic tail cannot be seen because of bowel gas, remove the normal pancreas statement from the template and clearly identify the portion that could not be assessed.
Be selective when documenting organ findings
Writing a long normal sentence for every organ does not make the report more reliable. Rather than including details unrelated to the clinical question, it is more useful to document the essential assessed features in a regular and consistent manner. When a positive finding is present, add diagnostically useful features such as location, size, morphology, acoustic characteristics, vascularity, and effect on adjacent structures.
Measurements should be obtained in a standard plane and, whenever possible, using a method comparable with prior examinations. Because normal ranges vary with age, body habitus, surgical history, and technique, avoid generating automatic interpretations from a single numeric threshold.
This framework should be adapted to the institutional protocol and the actual scope of the examination:
INDICATION: [Clinical question] COMPARISON: [Date / no relevant prior examination] TECHNIQUE: Transabdominal ultrasound. [Use of Doppler]. [Technical limitations]. FINDINGS: Liver: [Size, contour, parenchyma, focal lesion] Gallbladder and bile ducts: [Lumen, wall, stone/sludge, duct appearance] Pancreas: [Visualized portions and limitation] Spleen: [Size and parenchyma] Kidneys: [Right and left separately; size, parenchyma, collecting system, lesion] Aorta/IVC: [Assessment within protocol scope] Urinary bladder: [Filling, wall, lumen; if included] Pelvic structures: [If included] Peritoneal cavity: [Free fluid/collection] IMPRESSION: 1. [Primary finding answering the clinical question] 2. [Additional important finding or technical limitation] 3. [Targeted additional imaging recommendation, if needed]
Common mistakes
Using a fixed template for a complete abdominal examination without checking which structures were actually imaged.
Automatically converting increased hepatic echogenicity into a definitive histologic diagnosis.
Interpreting the gallbladder wall without considering inadequate distention or systemic conditions.
Calling the entire pancreas normal when part of it was not visualized.
Failing to state the side or location of a renal finding.
Making a definitive statement about the bladder wall when the bladder is inadequately distended.
Failing to provide a comparative measurement for a known lesion on a prior examination.
Focus the impression on the clinical question
In an examination performed for upper abdominal pain, a gallbladder or biliary finding that answers the clinical question should be the first item in the impression. Incidental simple cysts or findings of low clinical significance can be placed later so they do not obscure the main message. If a technical limitation prevents the primary question from being answered, it should be visible in the impression.
When additional imaging is recommended after ultrasound, avoid vague wording such as “further evaluation.” Instead, specify which question could be clarified by which modality in the relevant clinical context. The recommendation should still undergo medical review for consistency with the patient’s overall condition and current guidelines.
Quick pre-sign-off check
Was the basic assessment of the liver, biliary system, pancreas, spleen, and both kidneys completed? Were nonvisualized areas identified by organ? Is laterality correct? Are measurements comparable with prior examinations? Does the impression directly answer the question in the indication?
This brief check helps reduce “default normal” errors caused by template use, particularly during busy on-call shifts.
Sources
ACR Practice Parameter for Communication of Diagnostic Imaging Findings (Revised 2025) — Core report components, the impression section, and principles for nonroutine communication. Source (opens in a new tab)
RSNA RadReport Reporting Templates — A resource for standardized, consistent, and comprehensive reporting templates. Source (opens in a new tab)
ESR paper on structured reporting in radiology—update 2023 — Current framework and implementation principles for structured reporting. Source (opens in a new tab)
Structured reporting in radiology: a systematic review — A systematic assessment of the evidence on structured reporting. Source (opens in a new tab)
ACR–AIUM–SPR–SRU Practice Parameter for the Performance of an Ultrasound Examination of the Abdomen and/or Retroperitoneum — Scope and documentation of abdominal and retroperitoneal ultrasound examinations. Source (opens in a new tab)
Clinical use note
This content is educational and is not patient-specific medical advice. Every phrase, template, classification result, and recommendation must be verified and adapted by a physician using the complete examination, clinical context, current guidelines, and institutional protocol.
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Open an examination-specific framework in RadPhrases, adapt it to the findings, and verify it before signing.
