How Long Does It Take to Get Thyroid Ultrasound Results?

A thyroid ultrasound is a common diagnostic procedure that uses high-frequency sound waves to create images of the gland in the neck. Physicians typically order this scan to evaluate thyroid nodules (abnormal growths or clumps of cells) or to investigate changes in the gland’s size and texture. While the scan itself is usually quick, often taking less than 30 minutes, the waiting period for the official results can be a source of anxiety for many patients.

Typical Timeline for Radiologist Review

Once the ultrasound technologist completes the scan, the captured images are digitally sent to the facility’s Picture Archiving and Communication System (PACS). These images are placed on a worklist for a radiologist, a specialized physician trained to interpret diagnostic imaging. The radiologist reviews the images, comparing them to previous scans if available, and measures features like nodules or cysts. The radiologist dictates a preliminary report, followed by a final, officially signed report, which generally takes between 24 and 72 hours to be completed before being sent to the ordering physician.

Variables That Affect Final Report Delivery

The 24 to 72-hour window represents the internal processing time, but several factors influence when the final report is transmitted to the ordering provider.

Facility and Staffing

The type of facility is a factor, as large teaching hospitals with high volumes may experience longer backlogs than smaller, outpatient imaging centers. Staffing levels also affect delivery, as radiologist overburden or personnel shortages can cause delays in interpretation and reporting.

Complexity of Findings

The complexity of the findings can lengthen the reporting process. If a thyroid nodule is found, the radiologist must assign a standardized score, such as the Thyroid Imaging Reporting and Data System (TI-RADS). This requires careful analysis of characteristics like the nodule’s shape, composition, and presence of microcalcifications.

External Factors

If the radiologist needs to consult with a colleague or track down prior imaging from an outside facility for comparison, the final report may be delayed. Administrative issues, such as an incomplete patient history on the order form, can also hinder the radiologist’s ability to finalize the interpretation promptly.

How Patients Receive Their Thyroid Ultrasound Results

The final step is the communication of the results from the ordering physician to the patient. The completed report is sent directly from the imaging facility to the physician who requested the ultrasound, who then reviews the findings and determines the appropriate next steps. Many healthcare systems use patient portals, allowing patients to view the written report as soon as it is electronically signed by the radiologist. Results may also be delivered via phone call or reserved for discussion at a scheduled follow-up appointment; if a week passes without communication, contact the ordering physician’s office directly to inquire about the status of the report.