Tissue harmonic imaging sonography: evaluation of image quality compared with conventional sonography

Area of Science:

• Medical Imaging
• Diagnostic Ultrasound
• Sonography

Background:

• Conventional sonography utilizes lower frequencies, which can limit image penetration and detail.
• Tissue harmonic imaging (THI) is an advanced ultrasound technique designed to enhance image quality.

Purpose of the Study:

• To compare the image quality of tissue harmonic imaging (THI) sonography with conventional sonography.
• To evaluate the effectiveness of THI in improving penetration, detail, and overall image quality.

Main Methods:

• A prospective study involving 89 patients.
• Comparison of THI sonography (2.0 MHz transmitted, 4.0 MHz received) with conventional sonography (2.5 MHz and 4.0 MHz).
• Image grading by blinded evaluators for penetration, detail, and total image quality in pancreatic and other anatomic areas.

Main Results:

• THI sonography demonstrated significantly superior penetration, detail, and total image quality compared to both 2.5-MHz and 4.0-MHz conventional sonography for pancreatic examinations.
• For other anatomic areas, THI sonography also showed statistically significant improvements in penetration, detail, and total image quality over conventional methods.
• THI was the preferred technique for penetration, detail, and overall image quality in a majority of the examinations.

Conclusions:

• Tissue harmonic imaging (THI) technique substantially improves sonographic image quality.
• THI offers enhanced diagnostic capabilities due to superior image resolution and penetration.
• The findings support the routine use of THI for improved ultrasound diagnostics.