Ultrasound—new techniques are extending the applications

Clevert, Dirk-André; Beyer, Georg; Nieß, Hanno; Schlenker, Boris

doi:10.3238/arztebl.m2022.0380

Cited by 3 publications

(2 citation statements)

References 70 publications

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“…In abdominal ultrasound, new software (e.g. image fusion) implemented in ultrasound aiming at optimized conventional B-scan ultrasound in combination with the use of high-frequency probes has shown to lead to a better diagnostic accurancy for lesions in parenchymatous organs 26 . It is such clinical use that exemplifies the benefit of a thoughtful approach to technologies aiming at higher ultrasound imaging quality.…”

Section: Discussionmentioning

confidence: 99%

The application of high-performance ultrasound probes increases anatomic depiction in obese patients

Heinitz,

Müller,

Jenderka

et al. 2023

Sci Rep

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This study evaluated the impact of obesity on abdominal ultrasound diagnostics and assessed effect of high-performance ultrasound probes increased imaging quality. Lean and obese subjects (n = 40; 58% female) were categorized according to body mass index (BMI, 21 to 48 kg/m2). A highly standardized ultrasound examination of the abdomen was performed by trained examiners using three different probes in randomized order (standard probe versus two high-performance probes). Quality of B-mode and duplex ultrasound were assessed using a custom scoring approach for depiction of liver and kidney anatomy and vascularization. Across probes, imaging quality of hepatic and kidney anatomy was inversely related with BMI (P < 0.03, r < − 0.35). Age, sex, and BMI explained 51% of the variance within the ultrasound quality score, with β = − 0.35, P < 0.0001 for BMI. Compared to the standard probe, high-performance probes allowed for a better depiction of kidney and liver anatomy in subjects above BMI 35 kg/m2 (n = 20, all P < 0.05), resulting in a less pronounced deterioration of imaging quality with increased BMI (all P < 0.05). In conclusion the study shows that obesity impairs ultrasound imaging quality of abdominal anatomy. The application of high-performance probes can increase anatomic depiction in obese patients.Registration number of the German Registry of Clinical Studies: DRKS00023498.

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Section: Discussionmentioning

confidence: 99%

The application of high-performance ultrasound probes increases anatomic depiction in obese patients

Heinitz,

Müller,

Jenderka

et al. 2023

Sci Rep

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“…More recently, another emerging technology of US, i.e. , sonoelastography, is increasingly being used to assess and visually display tissue stiffness by US probes[ 10 - 14 ]. Elasticity imaging or elastography is an imaging modality based on tissue stiffness or hardness, rather than anatomy.…”

Section: Introductionmentioning

confidence: 99%

Comparison of resistive index and shear-wave elastography in the evaluation of chronic kidney allograft dysfunction

Jesrani,

Faiq,

Rashid

et al. 2024

World J Transplant

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BACKGROUND Detection of early chronic changes in the kidney allograft is important for timely intervention and long-term survival. Conventional and novel ultrasound-based investigations are being increasingly used for this purpose with variable results. AIM To compare the diagnostic performance of resistive index (RI) and shear wave elastography (SWE) in the diagnosis of chronic fibrosing changes of kidney allograft with histopathological results. METHODS This is a cross-sectional and comparative study. A total of 154 kidney transplant recipients were included in this study, which was conducted at the Departments of Transplantation and Radiology, Sindh Institute of Urology and Transplantation, Karachi, Pakistan, from August 2022 to February 2023. All consecutive patients with increased serum creatinine levels and reduced glomerular filtration rate (GFR) after three months of transplantation were enrolled in this study. SWE and RI were performed and the findings of these were evaluated against the kidney allograft biopsy results to determine their diagnostic utility. RESULTS The mean age of all patients was 35.32 ± 11.08 years. Among these, 126 (81.8%) were males and 28 (18.2%) were females. The mean serum creatinine in all patients was 2.86 ± 1.68 mg/dL and the mean estimated GFR was 35.38 ± 17.27 mL/min/1.73 m2. Kidney allograft biopsy results showed chronic changes in 55 (37.66%) biopsies. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of SWE for the detection of chronic allograft damage were 93.10%, 96.87%%, 94.73%, and 95.87%, respectively, and the diagnostic accuracy was 95.45%. For RI, the sensitivity, specificity, PPV, and NPV were 76.92%, 83.33%, 70.17%, and 87.62%, respectively, and the diagnostic accuracy was 81.16%. CONCLUSION The results from this study show that SWE is more sensitive and specific as compared to RI in the evaluation of chronic allograft damage. It can be of great help during the routine follow-up of kidney transplant recipients for screening and early detection of chronic changes and selecting patients for allograft biopsy.

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Ultrasonography for non-invasive sex identification and reproductive assessment in Nile tilapia (Oreochromis niloticus)

Setthawong,

Khemthong,

Lertwanakarn

et al. 2024

Front. Vet. Sci.

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Sex identification and the selection of monosex male tilapia are crucial for tilapia aquaculture. In this study, we evaluated the application of ultrasonography as an alternative procedure for sex identification and reproductive assessment in Nile tilapia (Oreochromis niloticus). Ultrasonography was performed on 23 fish weighing 232–1,281 g to capture longitudinal and transverse images of the ovaries and testes. Female tilapia were identified by the presence of numerous small egg granules and gray or light gray ovarian tissue and male tilapia by the homogeneous echogenicity and uniform gray tubular appearance of the testes. These distinct echogenic patterns allowed for accurate differentiation between the female and male fish. Ultrasonography achieved a 95% accuracy in sex identification, with minimal stress to the fish during the procedure, compared to manual sex sorting, which demonstrated an accuracy of 87%. Furthermore, the method facilitated the assessment of the reproductive status of the fish, including the maturation stages and fecundity potential. The use of ultrasonography offers significant advantages over traditional methods, such as animal welfare enhancements and improved breeding program efficiency. Our findings support the integration of ultrasonography into aquaculture practices and will promote sustainable and humane fish farming while optimizing reproductive management and productivity.

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Ultrasound—new techniques are extending the applications

Cited by 3 publications

References 70 publications

The application of high-performance ultrasound probes increases anatomic depiction in obese patients

The application of high-performance ultrasound probes increases anatomic depiction in obese patients

Comparison of resistive index and shear-wave elastography in the evaluation of chronic kidney allograft dysfunction

Ultrasonography for non-invasive sex identification and reproductive assessment in Nile tilapia (Oreochromis niloticus)

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