Effect of ultrasound contrast medium in color doppler and power doppler visualization of blood flow in canine kidneys

Abildgaard, A.; Kløw, N. -E.; Jakobsen, J. Å.; Egge, T. S.; Eriksen, M.

doi:10.3109/02841859709172098

Cited by 6 publications

(8 citation statements)

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“…Microvascular imaging of the kidney is possible only during the blood pool phase. There are many experimental studies of the use of microbubble agents having improved the detection and characterization of vascularity in various renal lesions (1, 2, 5, 6, 15, 20–22); however, there are only a few applications of microbubble contrast in human kidney described (9, 10, 16).…”

Section: Discussionmentioning

confidence: 99%

“…Since microbubble US contrast agents have become available, their efficacy for characterization of focal renal lesions has been the subject of clinical investigations (12). There are many experimental studies describing how the use of microbubble agents on color and power Doppler US can improve the detection and characterization of various renal perfusion abnormalities, including masses (1, 2, 5, 6, 15, 20–22); however, there are hardly any human studies (9, 10, 16).…”

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confidence: 99%

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Renal Perfusion Abnormality.

Eun¹,

Lee²,

Park³

et al. 2003

Acta Radiologica

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Renal Perfusion Abnormality.

Eun¹,

Lee²,

Park³

et al. 2003

Acta Radiologica

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“…Furthermore, in a dog model with varying degrees of segmental artery stenosis on the anterior of the two segmental arteries it was possible to diagnose both occlusion and stenosis causing hypoperfusion better after i. v. injection of NUS (Fig. 3) [32]. Also, contrast harmonic imaging is shown to depict infarcts, both with continuous and triggered acquisition [33].…”

Section: Preclinical Experimentsmentioning

confidence: 96%

Ultrasound contrast agents and their use in urogenital radiology: status and prospects

Jakobsen

Corréas

2001

Eur Radiol

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Ultrasound contrast agents (USCAs) for intravenous use are usually microbubbles with a mean diameter less than that of a red blood corpuscle and filled with gas. The USCAs may improve information about tissue characteristics and physiology by enhancing B-mode imaging, all Doppler modalities and by means of contrast-specific imaging, e.g. harmonic and stimulated acoustic imaging. Results from preclinical experiments have been promising, and several of these have been reproduced in clinical studies. This includes improved evaluation of renal vasculature and parenchyma, assessment of vesicoureteral reflux in children, assessment of tubal patency in women, and evaluation of prostate diseases and erectile dysfunction in men. Some of the physical limits of the ultrasound technology, as well as the operator-dependent factors, can probably never be overcome by the use of USCAs; however, the development of USCAs is now about to provide uroradiologists with potentially efficacious products for the benefit of the patient.

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“…This allows distinction between benign and malignant behavior of focal parenchymal lesions in liver and spleen . In kidneys of human patients as well as in dogs and rabbits, the use of ultrasound contrast agents provides more accurate morphologic and quantitative information about cortical vascularity . Contrast harmonic ultrasound has been used predominantly in the assessment of focal renal lesions and renal trauma .…”

Section: Introductionmentioning

confidence: 99%

“…[33][34][35] In kidneys of human patients as well as in dogs and rabbits, the use of ultrasound contrast agents provides more accurate morphologic and quantitative information about cortical vascularity. [36][37][38] Contrast harmonic ultrasound has been used predominantly in the assessment of focal renal lesions 39,40 and renal trauma. 41,42 To our knowledge, no information exist about contrast harmonic ultrasound evaluation of postbiopsy renal complications in both veterinary and human medicine.…”

Section: Introductionmentioning

confidence: 99%

Contrast Harmonic Ultrasound Appearance of Consecutive Percutaneous Renal Biopsies in Dogs

Haers

Smets

Pey

et al. 2011

Vet Radiology Ultrasound

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Ultrasound-guided percutaneous renal biopsy may be associated with complications, especially when using larger needles. Contrast harmonic ultrasound increases blood pool echo intensity, enhancing parenchymal lesions. Therefore, contrast harmonic ultrasound is a potential alternative screening method for postbiopsy renal lesions. Renal biopsies were performed using 14 G needles in 11 healthy Beagles, at three occasions: 0 ("Baseline Biopsy"; BB), 4 ("Biopsy 2"; B2), and 6 months ("Biopsy 3"; B3). Ultrasound and contrast harmonic ultrasound of biopsied kidneys were performed approximately 30 min after biopsy (week 0) at BB and B2, and repeated once every week (weeks 1-3) until normal appearance. At B3, only contrast harmonic ultrasound was performed, both immediately and 30-min postbiopsy. Contrast harmonic ultrasound images were reviewed using subjective and semiquantitative methods to describe lesions including number, shape, size, sharpness, echogenicity, and evolution. More renal lesions were detected with contrast harmonic ultrasound (22/22) compared with conventional ultrasound (14/22). The majority appeared at week 0 as hypoechoic tract(s) (27/33), the other (6/ 33) as ill-defined areas or area/tract combination, all having variable size, shape, and echogenicity. Seven tracts had a small subcapsular hematoma. In most kidneys, similar or gradual decrease of size and sharpness, and increased echogenicity was observed until normal appearance occurred at week 1 (1/22), week 2 (18/22), or week 3 (22/22). Two Beagles developed complications. At B3, immediately postbiopsy, tracts were hyperechoic in 9/11 kidneys, becoming hypoechoic again 30 min later. Contrast harmonic ultrasound is a valuable method to evaluate postbiopsy renal lesions in dogs.

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Effect of ultrasound contrast medium in color doppler and power doppler visualization of blood flow in canine kidneys

Cited by 6 publications

References 0 publications

Renal Perfusion Abnormality.

Renal Perfusion Abnormality.

Ultrasound contrast agents and their use in urogenital radiology: status and prospects

Contrast Harmonic Ultrasound Appearance of Consecutive Percutaneous Renal Biopsies in Dogs

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