Comparison of Tissue Harmonic Imaging with Conventional US in Abdominal Disease

Choudhry, Saad; Gorman, Brian P.; Charboneau, J. William; Tradup, Donald J.; Beck, R J; Kofler, James M.; Groth, D S

doi:10.1148/radiographics.20.4.g00jl371127

Cited by 152 publications

(94 citation statements)

References 7 publications

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“…Due to their high frequency, the result is a high quality image. Harmonic ultrasound technique ("coded harmonics" or "tissue harmonic imaging," THI) combined with the pulse inversion procedure ("pulse inversion harmonic imaging") allows to obtain information regardless of the depth where the region of interest lies and is available on most commercial equipment (Choudhry et al, 2000).…”

Section: Tissue Investigationmentioning

confidence: 99%

Ultrasound Imaging of Liver Tumors – Current Clinical Applications

Badea¹,

Ioaniţescu²

2012

Liver Tumors

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Section: Tissue Investigationmentioning

confidence: 99%

Ultrasound Imaging of Liver Tumors – Current Clinical Applications

Badea¹,

Ioaniţescu²

2012

Liver Tumors

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“…Limitations of THS are overall coarse echotexture and decreased penetration. (6,7) Previous studies by Yucel C et al (9) Sodhi K S et al (10) Choudhry S et al (11) Kubota K et al (12) evaluated efficacy of THS as compared to CS and concluded that THS was significantly superior to conventional sonography, especially in obese patients and patients with poor acoustic window. Our study correlated with these previous studies and confirmed that tissue hormonic imaging was better than conventional sonography in assessment of focal liver lesions.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Various Focal Liver Lesions and Comparison of Image Quality Between Conventional Sonography and Tissue Harmonic Sonography in Focal Liver Lesions

Aiyappan¹,

Vadanika²,

Karpagam³

et al. 2015

jemds

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AIM:To compare the image quality of conventional sonography and tissue harmonic sonography in focal liver lesions and to estimate the prevalence of various focal liver lesions. MATERIALS AND METHODS: 100 consecutive patients with focal liver lesions, referred to the radiology department over a period of 2 years were enrolled in this study. The final diagnosis of these lesions were confirmed either by CT, MRI or cytology/histopathology. Patients with focal liver lesions were subjected to conventional sonography and tissue harmonic imaging in the same ultrasound machine. Two radiologists who were blinded to the imaging technique used, compared the random images twice. The second evaluation of the same set of images by each observer was done after a minimum interval of 4 months. Results were analysed. RESULTS: Out of 100 patients, solitary lesions were seen in 36 cases and multiple in 64 cases. Solid lesions were seen in 68 cases and cystic lesions were seen seen in 32 cases. Metastasis was the most common solid lesion and simple hepatic cyst was the most common cystic lesion. Tissue harmonic imaging was better than conventional sonography in assessment of liver lesions. CONCLUSION: In this study we conclude tissue harmonic imaging is better than conventional sonography in assessment of focal liver lesions and metastasis is the most common solid liver lesion.

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“…The improved image quality of THS has led to its widespread use in evaluation of the abdomen (liver, kidney, gall bladder, bile ducts), vessels and breasts [7][8][9][17][18][19][20][21][22][23][24][25][26][27]. Limitations of THS include overall coarse echo texture and decreased penetration [17,18].…”

Section: Introductionmentioning

confidence: 99%

Focal hepatic lesions characterisation by different sonographic techniques: a prospective analysis

et al. 2015

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Introduction Ultrasound is usually the first diagnostic investigation for the assessment of liver lesions. Apart from conventional sonography (CS), new grey-scale sonographic techniques have been developed which have increased the application of ultrasound in liver imaging. The present study was undertaken to compare image quality of CS, real-time compound sonography (RTCS), tissue harmonic sonography (THS) and tissue harmonic compound sonography (THCS) in focal liver lesions. Materials and methods 100 patients with focal hepatic lesions were enroled. Lesions were divided into solid and cystic group. Solid lesions were evaluated for lesion conspicuity and elimination of artefacts. For cystic lesions, lesion conspicuity, posterior acoustic enhancement and internal echoes within the lesion were evaluated. Grading was done using 3-5-point scales. Overall image quality was assessed depending on the total points. Results 78 solid and 22 cystic liver lesions were included. THCS showed superior results for lesion conspicuity, elimination of artefacts and overall image quality in solid lesions. RTCS showed similar results as THCS for lesion conspicuity and overall image quality in solid lesions. THS gave better results in cystic lesions for all imaging parameters. Results of THCS though slightly inferior, showed no significant difference from THS, in cystic lesions. CS was found to have least diagnostic value in characterisation. Conclusions For evaluation of focal hepatic lesions, a combination of compound and harmonic sonography, i.e. THCS, is the preferred sonographic technique.Keywords Ultrasonography Á Liver Á Liver lesions Á Tissue harmonic imaging Á Compound US Riassunto Introduzione l'ecografia è di solito l'indagine radiologica iniziale, non invasiva e semplice, per la valutazione delle lesioni epatiche. Oltre alla tradizionale ecografia in scala di grigi (CS), sono state sviluppate delle nuove tecniche, che hanno aumentato le applicazioni dell'ecografia nell'imaging del fegato. Il presente studio è stato intrapreso per confrontare la qualità delle immagini in: CS, ecografia in tempo reale con compound (RTCS), armonica tissutale (THS) e armonica tissutale con compound (THC) nello studio delle lesioni focali epatiche. Materiali e Metodi sono stati arruolati 100 pazienti con lesioni focali epatiche. Le lesioni sono state divise in solide e cistiche. Per le lesioni solide sono stati valutati la visibilità e l'eliminazione di artefatti. Per le lesioni cistica sono stati valutati la visibilità, il rinforzo acustico posteriore e gli echi all'interno delle lesioni. La classificazione è stata effettuata utilizzando una scala da 3 a 5. La qualità generale dell'immagine è stata valutata in base al totale dei punti. Risultati sono state incluse 78 lesioni epatiche solide e 22 cistiche. La THC ha mostrato risultati superiori per la visibilità delle lesioni, l'eliminazione di artefatti e la qualità complessiva dell'immagine delle lesioni solide. La RTCS ha mostrato risultati simili a quelli di THC per la visibilità ...

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Comparison of Tissue Harmonic Imaging with Conventional US in Abdominal Disease

Cited by 152 publications

References 7 publications

Ultrasound Imaging of Liver Tumors – Current Clinical Applications

Ultrasound Imaging of Liver Tumors – Current Clinical Applications

Prevalence of Various Focal Liver Lesions and Comparison of Image Quality Between Conventional Sonography and Tissue Harmonic Sonography in Focal Liver Lesions

Focal hepatic lesions characterisation by different sonographic techniques: a prospective analysis

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