scholarly journals A comparison of volume and anthropometric breast measurements using the Crisalix and VECTRA XT 3-dimensional surface imaging systems in women who have undergone breast-conserving surgery

2021 ◽  
Vol 9 (4) ◽  
Author(s):  
Astrid MBChB ◽  
Rachel Connell ◽  
Stephanie Dean ◽  
Rosa Micco ◽  
Naser Alotaibi ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Breast Conserving Surgery ◽  
Observer Agreement ◽  
Surface Imaging ◽  
Breast Volume ◽  
Limits Of Agreement ◽  
Sternal Notch ◽  
3 Dimensional ◽  
The Mean ◽  
Dimensional Surface

Introduction Three-dimensional surface imaging (3D-SI) of the breasts enables the measurement of anthropometric distances and breast volume. These measurements may be used in surgical planning and to facilitate clear communication with patients. The aim of this study was to compare measurements using a portable 3D-SI system, Crisalix, with a more established non-mobile camera, the VECTRA XT. Methods Participants were imaged three times using the Crisalix and the VECTRA XT system. Breast volume, sternal notch to nipple distance, nipple to nipple distance and breast width were measured. Intra-observer agreement was measured using the co-efficient of variation (CV). Agreement between the two methods was represented with Bland Altman agreement plots. Results Intra-method variation was low for both methods (maximum CV 3.3% for Crisalix and 3.2% for VECTRA XT), with only nipple-to-nipple distance being statistically significant, marginally in favour of VECTRA. The mean inter-method differences were small but the limits of agreement (LoA) were wide for all parameters: best for sternal notch to nipple distance, mean difference (MD) -0.03cm and LoA 1.8 to -1.8cm; the widest LoA were for breast volume: MD 31.1cm3 and LoA 286.7 to -244.6cm3. Conclusion This is the first comparison of anthropometric distances and breast volume measured using the two most widely used 3D-SI systems, Crisalix and VECTRA XT. Intra-method variation is low but currently it would not be appropriate to use the two systems interchangeably due to the wide limits of agreement for all four parameters assessed.

Assessing the Accuracy of a 3-Dimensional Surface Imaging System in Breast Volume Estimation

2020 ◽  
Vol 84 ◽  
pp. S311-S317 ◽  
Author(s):  
Jeffrey W. Kwong ◽  
Jonathan David Tijerina ◽  
Sara Choi ◽  
Anna Luan ◽  
Carol L. Feng ◽  
...  
Keyword(s):  
Imaging System ◽  
Volume Estimation ◽  
Surface Imaging ◽  
Breast Volume ◽  
3 Dimensional ◽  
Dimensional Surface

New Aspects of Breast Volume Measurement Using 3-Dimensional Surface Imaging

2006 ◽  
Vol 57 (6) ◽  
pp. 602-610 ◽  
Author(s):  
Laszlo Kovacs ◽  
Maximilian Eder ◽  
Regina Hollweck ◽  
Alexander Zimmermann ◽  
Markus Settles ◽  
...  
Keyword(s):  
Volume Measurement ◽  
Surface Imaging ◽  
Breast Volume ◽  
3 Dimensional ◽  
Dimensional Surface

scholarly journals Three-Dimensional Surface Imaging is an Effective Tool for Measuring Breast Volume: A Validation Study

2016 ◽  
Vol 43 (5) ◽  
pp. 430-437 ◽  
Author(s):  
Woo Yeon Lee ◽  
Min Jung Kim ◽  
Dae Hyun Lew ◽  
Seung Yong Song ◽  
Dong Won Lee
Keyword(s):  
Validation Study ◽  
Three Dimensional ◽  
Surface Imaging ◽  
Breast Volume ◽  
Dimensional Surface

scholarly journals The potential role of three-dimensional surface imaging as a tool to evaluate aesthetic outcome after Breast Conserving Therapy (BCT)

2017 ◽  
Vol 164 (2) ◽  
pp. 385-393 ◽  
Author(s):  
Rachel L. O’Connell ◽  
Rosa Di Micco ◽  
Komel Khabra ◽  
Lisa Wolf ◽  
Nandita deSouza ◽  
...  
Keyword(s):  
Potential Role ◽  
Three Dimensional ◽  
Breast Conserving Therapy ◽  
Surface Imaging ◽  
Aesthetic Outcome ◽  
Dimensional Surface

scholarly journals Evaluation of Inter-System Variability in Liver Stiffness Measurements

2018 ◽  
Vol 40 (01) ◽  
pp. 64-75 ◽  
Author(s):  
Giovanna Ferraioli ◽  
Annalisa De Silvestri ◽  
Raffaella Lissandrin ◽  
Laura Maiocchi ◽  
Carmine Tinelli ◽  
...  
Keyword(s):  
Shear Wave ◽  
Liver Stiffness ◽  
Shear Wave Elastography ◽  
Mean Difference ◽  
Observer Agreement ◽  
Concordance Correlation ◽  
Limits Of Agreement ◽  
Inter Observer Variability ◽  
System Variability ◽  
The Mean

Abstract Aim The primary aim of this study was to determine the inter-system variability of liver stiffness measurements (LSMs) in patients with varying degrees of liver stiffness. The secondary aim was to determine the inter-observer variability of measurements. Materials and Methods 21 individuals affected by chronic hepatitis C and 5 healthy individuals were prospectively enrolled. The assessment of LSMs was performed using six ultrasound (US) systems, four of which with point shear wave elastography (p-SWE) and two with 2 D shear wave elastography (2D-SWE) systems. The Fibroscan (Echosens, France) was used as the reference standard. Four observers performed the measurements in pairs (A-B, C-D). The agreement between different observers or methods was calculated using Lin’s concordance correlation coefficient. The Bland-Altman limits of agreement (LOA) were calculated as well. Results There was agreement above 0.80 for all pairs of systems. The mean difference between the values of the systems with 2D-SWE technique was 1.54 kPa, whereas the maximum mean difference between the values of three out of four systems with the pSWE technique was 0.79 kPa. The intra-patient concordance for all systems was 0.89 (95 % CI: 0.83 – 0.94). Inter-observer agreement was 0.96 (95 % CI: 0.94 – 0.98) for the pair of observers A-B and 0.93 (95 % CI: 0.89 – 0.96) for the pair of observers C-D. Conclusion The results of this study show that the agreement between LSMs performed with different US systems is good to excellent and the overall inter-observer agreement in “ideal conditions” is above 0.90 in expert hands.

scholarly journals Reproducibility of Ablated Volume Measurement Is Higher with Contrast-Enhanced Ultrasound than with B-Mode Ultrasound after Benign Thyroid Nodule Radiofrequency Ablation—A Preliminary Study

2020 ◽  
Vol 9 (5) ◽  
pp. 1504 ◽  
Author(s):  
Simone Schiaffino ◽  
Francesca Serpi ◽  
Duccio Rossi ◽  
Valerio Ferrara ◽  
Ciriaco Buonomenna ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Thyroid Nodules ◽  
Observer Agreement ◽  
Contrast Enhanced Ultrasound ◽  
Limits Of Agreement ◽  
Contrast Enhanced ◽  
The Mean ◽  
Preliminary Study ◽  
Benign Thyroid Nodules ◽  
Benign Thyroid

The reproducibility of contrast-enhanced ultrasound (CEUS) and standard B-mode ultrasound in the assessment of radiofrequency-ablated volume of benign thyroid nodules was compared. A preliminary study was conducted on consecutive patients who underwent radiofrequency ablation (RFA) of benign thyroid nodules between 2014 and 2016, with available CEUS and B-mode post-ablation checks. CEUS and B-mode images were retrospectively evaluated by two radiologists to assess inter- and intra-observer agreement in the assessment of ablated volume (Bland–Altman test). For CEUS, the mean inter-observer difference (95% limits of agreement) was 0.219 mL (-0.372–0.809 mL); for B-mode, the mean difference was 0.880 mL (-1.655–3.414 mL). Reproducibility was significantly higher for CEUS (85%) than for B-mode (27%). Mean intra-observer differences (95% limits of agreement) were 0.013 mL (0.803–4.097 mL) for Reader 1 and 0.031 mL (0.763–3.931 mL) for Reader 2 using CEUS, while they were 0.567 mL (-2.180–4.317 mL, Reader 1) and 0.759 mL (-2.584–4.290 mL, Reader 2) for B-mode. Intra-observer reproducibility was significantly higher for CEUS (96% and 95%, for the two readers) than for B-mode (21% and 23%). In conclusion, CEUS had higher reproducibility and inter- and intra-observer agreement compared to conventional B-mode in the assessment of radiofrequency-ablated volume of benign thyroid nodules.

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