Comparison Of A-mode And B-mode Ultrasound For Measurement Of Subcutaneous Fat

Wagner, Dale R.; Judd, Trenton; Gordon, Joshua P.; McPherson, Casey; Robison, Adrianna

doi:10.1249/01.mss.0000535607.12301.9f

Cited by 2 publications

(4 citation statements)

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“…These factors might explain why the accuracy and reproducibility of ultrasonic device measurements were smaller in the posterior area. Previous studies have proven that A‐mode ultrasound shares the same diagnostic accuracy as B‐mode ultrasound for subcutaneous fat and palatal thickness measurements 48–50 . However, a comparison of A‐ and B‐mode ultrasound for periodontal soft tissue measurement is lacking, and further studies are warranted.…”

Section: Discussionmentioning

confidence: 99%

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Methods to assess tooth gingival thickness and diagnose gingival phenotypes: A systematic review

Wang

Cha

Zhao

et al. 2022

J Esthet Restor Dent

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Objective Measurement of the periodontal soft tissue dimension is crucial for clinical decision‐making and aesthetic prognosis. However, the effectiveness of different measuring methods remains unclear. This systematic review aimed to explore the diagnostic accuracy of two non‐invasive methods (namely CBCT and ultrasound) for gingival thickness measurement at different tooth positions. Materials and methods A systematic search was performed using PubMed (including Medline), PubMed Central, OVID, Cochrane Library, LILACS and OpenGrey. Studies focusing on comparisons between CBCT, ultrasound and direct transgingival probing were included. The means, SDs and correlation coefficients with 95% confidence intervals were extracted and analyzed using Review Manager and R software. Results Twelve studies were selected. No significant difference was found between CBCT measurement and transgingival probing in the anterior and posterior dentition, and a moderate correlation was observed between these two methods (r = 0.41). A weak correlation was found between ultrasound measurement and transgingival probing (r = 0.32), and a slight but statistically significant difference was found when comparing ultrasonic devices and transgingival probing in the posterior area. Conclusion CBCT can be considered a relatively reliable method for gingival thickness measurement in both the anterior and posterior areas compared with direct probing. Ultrasonic devices provide limited accuracy in the posterior area but are relatively comparable with direct clinical assessments in the anterior area. Clinical significance Measurement location may affect the diagnostic accuracy and repeatability of gingival thickness measurements. Appropriate method selection in different clinical scenarios is crucial to aesthetic outcome prediction and decision‐making.

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Section: Discussionmentioning

confidence: 99%

“…Previous studies have proven that A-mode ultrasound shares the same diagnostic accuracy as B-mode ultrasound for subcutaneous fat and palatal thickness measurements. [48][49][50] However, a comparison of A-and B-mode ultrasound for periodontal soft tissue measurement is lacking, and further studies are warranted.…”

Section: Summary Of Evidencementioning

confidence: 99%

Methods to assess tooth gingival thickness and diagnose gingival phenotypes: A systematic review

Wang

Cha

Zhao

et al. 2022

J Esthet Restor Dent

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“…Compared with B-mode ultrasound devices, which map soft tissues in a two-dimensional image, A-mode devices are generally more costeffective and have less reliance on a technician's skill, training, and time. 20 However, we should be aware that the accuracy of the BV measurement using the Lilium was more affected by the patient's characteristics than that using the B-mode device. Yamaguchi et al reported that flattened bladder shape and large prostates could be factors in measurement error in the BV measurement using the Lilium.…”

Section: Discussionmentioning

confidence: 99%

“…Thus, in this study, BV was underestimated in the A‐mode device compared to CBCT. Compared with B‐mode ultrasound devices, which map soft tissues in a two‐dimensional image, A‐mode devices are generally more cost‐effective and have less reliance on a technician's skill, training, and time 20 . However, we should be aware that the accuracy of the BV measurement using the Lilium was more affected by the patient's characteristics than that using the B‐mode device.…”

Section: Discussionmentioning

confidence: 99%

Improvement in bladder volume reproducibility using A‐mode portable ultrasound bladder scanner in moderate‐hypofractionated volumetric modulated arc therapy for prostate cancer patients

Ohira

Komiyama

Kanayama

et al. 2022

J Applied Clin Med Phys

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Purpose This study introduced an A‐mode portable ultrasound bladder scanner, the Lilium® α‐200 (here after Lilium; Lilium Otsuka, Kanagawa, Japan), for the treatment of prostate cancer patients with hypofractionated volumetric modulated arc therapy to improve the reproducibility of bladder volume (BV). Materials and methods Thirty patients were advised to maintain full BV prior to computed tomography (CT) simulation and daily treatment. Among these, the BV of 15 patients was measured using Lilium until a BV of 80% in the simulation was achieved (with the Lilium group). Daily cone‐beam CT (CBCT) was performed for treatment. The correlation between BV measured by CBCT and Lilium was assessed. The differences in the BV and dosimetric parameters of the bladder in the CBCT versus planning CT were compared between the groups with and without Lilium. Results There was a significantly strong relationship (r = 0.796, p < 0.05) between the BVs measured using CBCT and Lilium. The relative BV ratios to simulation CT < 0.5 and > 2 were observed in 10.3% and 12.7%, respectively, of treatment sessions without Lilium group, while these ratios were 1% and 2.8%, respectively, in the Lilium group. The mean absolute difference in the range of V30Gy to V40Gy without Lilium sessions was significantly larger (p < 0.05) than that in the Lilium group. Conclusion The use of the A‐mode portable ultrasound bladder scanner significantly improved the reproducibility of the BV, resulting in few variations in the dosimetric parameters for the bladder.

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Comparison Of A-mode And B-mode Ultrasound For Measurement Of Subcutaneous Fat

Abstract: Figure 1. Bland-Altman plots comparing averages of A-mode and B-mode measurements for seven sites.

Cited by 2 publications

References 1 publication

Methods to assess tooth gingival thickness and diagnose gingival phenotypes: A systematic review

Methods to assess tooth gingival thickness and diagnose gingival phenotypes: A systematic review

Improvement in bladder volume reproducibility using A‐mode portable ultrasound bladder scanner in moderate‐hypofractionated volumetric modulated arc therapy for prostate cancer patients

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