Our data are collected from BUS reports of patients at the Sun Yat-sen University Cancer Center between February 2014 and March 2017. The BUS scans were performed with a LOGIQ E9 scanner (GE, Boston, MA, USA) or iU22 xMATRIX scanner (Philips, Amsterdam, Netherlands). All machines are equipped with a high-frequency (6–14 MHz) linear array transducer. Given this range of transducer frequency, the axial resolution is approximately 0.165–0.385 mm. All scans were performed by one of two senior radiologists (Longzhong Liu, with 25 years of experience in US diagnosis, and Ying Liu, with 10 years of experience in US diagnosis). Further, each scan was re-labeled by one of two junior radiologists (Lingli Xiao, with three years of experience in US diagnosis, and Guanying Wang, with two years of experience in US diagnosis) independently.
Logiq e9 scanner
Manufactured by GE Healthcare
Sourced in United States
The LOGIQ E9 scanner is a diagnostic ultrasound system designed for general imaging applications. It provides high-quality imaging capabilities to support healthcare professionals in their clinical assessments.
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7 protocols using logiq e9 scanner
1
Breast Ultrasound Scans at Sun Yat-sen
2
Thrombus Stiffness Characterization by Ultrasound
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Ultrasound elastography was used to assess the stiffness of the agarose-embedded ex vivo samples44 . Ultrasound images were acquired with a linear array transducer (GE Ultrasound Transducer 9L, 9 MHz nominal frequency) and Logiq E9 scanner (GE Healthcare, Chicago, IL, USA). The scanner exam protocol “Small Parts” was utilized. Based on the approximate depth of the sample, a scan depth of 2 to 4 cm, and 9 MHz frequency setting provided good resolution of the sample. Standard B-mode images were used to visualize the cross section of the thrombus (e.g. orthogonal to its in situ vascular orientation), and a shear wave elastography images were used to map the elastic modulus. Three images (e.g. three measurements of elastic modulus) were recorded, and the average elastic modulus tabulated for each sample. For each section, regions-of-interest ~ 4 mm in diameter were selected to quantify the elastic modulus depending on the diameter of the thrombus (mean diameter 0.7 cm, range 0.3–1.4 cm). To avoid surface waves along the thrombus/agarose interface, regions-of-interest were not acquired near the edge of the sample.
3
Measuring Peak Systolic Velocity in Anterior Humeral Circumflex Artery
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Ultrasonographic examinations were performed independently by 3 experienced sonographers with extensive experience in musculoskeletal US, using a LOGIQ E9 scanner (GE Healthcare, Bensalem, PA, USA) with a 6- to 15-MHz linear transducer. Blood flow in the AHCA was assessed using pulse Doppler US, as previously described.37 (link) First, the color Doppler mode was used to identify the AHCA (Fig. 2 , A). Pulse Doppler mode was used to measure the PSV in the AHCA on a longitudinal scan (Fig. 2 , B). After waveforms appeared similar to each other, PSV was measured at the tallest waveform. On the nonoperative side, the presence or absence of RCT and PSV in the AHCA was also evaluated.![]()
Method of measuring the peak systolic velocity (PSV) in the anterior humeral circumflex artery (AHCA). (
4
CEUS Imaging of HCC Pre and Post TACE
5
Imaging Techniques for Primary Hyperparathyroidism
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All enrolled patients underwent ultrasound (US) and 99mTc sestamibi (MIBI) examinations before treatment. The US examination was performed by using a LOGIQ E9 scanner (GE Healthcare with a 6–15-MHz linear probe. MIBI was conducted by a SymbiaT2 scanner (Siemens Healthineers) [5 (link),17 (link)]. The diagnostic characteristics of pHPT nodules on US included (1) enlarged hypoechoic parathyroid glands with clearly defined margins and (2) no suspicion of lymph node metastasis. The MIBI characteristic of pHPT nodules was radioactive concentration in early and delayed phases.
6
Ultrasound Evaluation of Canine Testicular Lesions
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All sonographic examinations were performed by the same operators using a LOGIQ E9 scanner (GE Medical Systems, Milwaukee, WI, USA) equipped with a (9L GE Medical Systems, Milwaukee, WI, USA) 2.5–8 MHz linear probe on unsedated dogs held in lateral recumbency. In dogs with multiple testicular lesions, we recorded data for each lesion. For all ultrasound methods used, the characteristics of the lesions were compared to normal surrounding testicular parenchyma, whilst in the case of lesions involving the whole gonad the normal parenchyma of the contralateral testicle was considered to compare data.
Longitudinal and transverse views were obtained from each testis using B-mode. B-Mode ultrasound parameters included anatomical site of affected testicle (scrotal or abdominal), maximal diameter (cm), location (left, right, or both testicle), margins (regular, irregular), echogenicity (hyperechoic, hypoechoic, isoechoic, anechoic or mixed), and echotexture (homogeneous or inhomogeneous) of the lesions relative to normal surrounding (or contralateral, in the case of a diffuse lesion) testicular parenchyma (Figure 1 ).
Longitudinal and transverse views were obtained from each testis using B-mode. B-Mode ultrasound parameters included anatomical site of affected testicle (scrotal or abdominal), maximal diameter (cm), location (left, right, or both testicle), margins (regular, irregular), echogenicity (hyperechoic, hypoechoic, isoechoic, anechoic or mixed), and echotexture (homogeneous or inhomogeneous) of the lesions relative to normal surrounding (or contralateral, in the case of a diffuse lesion) testicular parenchyma (
7
Microwave Ablation for Breast Cancer
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MWA was performed under local anesthesia by three specialized surgeons with more than 10 years of experience in the MWA. The microwave unit (KY-2000, Kangyou Medical, Nanjing, China) can produce 100 W of power at 2,450 MHz with a 16-gauge needle antenna. US guidance was performed with a GE LOGIQ E9 scanner (GE Medical Systems US & Primary Care Diagnostics, Wauwatosa, USA) with a 9.0 MHz Convex array transducer. When possible, the ablation region was expanded by at least 1 cm from the tumor margin on the US and CEUS. In addition, we prepared prophylactic ice and used saline dissection of the lesion and chest wall, nipple or skin to reduce the likelihood of thermal injury.
The status of lymph nodes was evaluated by CEUS (Sonovue, Bracco Company, Milan, Italy) or CEMRI (Signa Echo-Speed, GE Medical Systems, Milwaukee, WI, USA) before ablation and all the suspicious lymph nodes were CEUS-guided biopsied by core needle (16 G, Bard, Tempe, Ariz). When no suspicious lymph nodes were detected under CEUS and CEMRI, one SLN was percutaneously biopsied to validate the benign diagnosis. All pathologically malignant lymph nodes were ablated during the same procedure as BC ablation. The treatment details for the MWA procedure were described in our previous study [Citation13] .
The status of lymph nodes was evaluated by CEUS (Sonovue, Bracco Company, Milan, Italy) or CEMRI (Signa Echo-Speed, GE Medical Systems, Milwaukee, WI, USA) before ablation and all the suspicious lymph nodes were CEUS-guided biopsied by core needle (16 G, Bard, Tempe, Ariz). When no suspicious lymph nodes were detected under CEUS and CEMRI, one SLN was percutaneously biopsied to validate the benign diagnosis. All pathologically malignant lymph nodes were ablated during the same procedure as BC ablation. The treatment details for the MWA procedure were described in our previous study [Citation13] .
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