Transvaginal ultrasonography with the Voluson Expert 730 with a 7.5 vaginal transducer (GE Healthcare) was used for the determination of the AFC and the ovarian volume on the third day of the menstrual cycle. Briefly, once the individual was with an empty bladder and in a lithotomy position, the transducer was advanced about 6 to 8 cm into the vagina angling laterally until the ovary was visualized. The length and Antero-Posterior (AP) measurements were obtained in the longitudinal plane, while in the transverse plane, the antral follicles measuring 2–10 mm in diameter in both ovaries were counted for the AFC.
Voluson 730 expert
Manufactured by GE Healthcare
Sourced in Austria, United States, Germany, United Kingdom
The Voluson 730 Expert is a high-performance ultrasound system designed for obstetric and gynecological applications. It features advanced imaging technologies and a user-friendly interface to support healthcare professionals in their clinical practice.
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42 protocols using voluson 730 expert
1
Ovarian Antral Follicle Counting by Transvaginal Ultrasound
2
Grading Fatty Liver Severity using Sonography
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An expert radiologist used sonography techniques to measure liver fat with respect to standardized criteria (3.5–5 MHz probe; Voluson Expert 730; GE Healthcare, Seoul, Korea). The degree of fatty liver was reported as follows: grade 1, mildly increased liver echogenicity with normal visualization of the diaphragm and intrahepatic vascular borders; grade 2, moderately increased liver echogenicity with slightly decreased visualization of the diaphragm and intrahepatic vascular margins; and grade 3, severely increased liver echogenicity with poor or no visualization of the diaphragm and vessel borders [22 (link)].
3
Dynamic 3D Ultrasound of Hand Joints
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The hands of the patient were stretched flat on the examining table. The second metacarpophalangeal finger joint and the wrist joint of the hand with the more pronounced swelling were fixed and imaged using a GE Voluson Expert 730 type dynamic three dimensional color ultrasound diagnostic apparatus (GE Healthcare, Princeton, NJ, USA), with a 5–12 MHz high frequency linear array probe and a 5–12 MHz dynamic three-dimensional probe. Under specific instrument settings, two-dimensional ultrasonography was performed by transversely and longitudinally scanning the dorsal and palmar metacarpophalangeal joint (metacarpophalangeal second joint 2; MCP2), and wrist joint. The tendon, synovium, articular cavity, cortical bone and blood flow was observed.
4
Comprehensive Ultrasound Assessment of Liver and Spleen
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The US examination of the liver and spleen was performed by 4 sonologists with 10-21 years of experience, using Logiq 9 (GE Healthcare, Waukesha, WI), Voluson Expert 730 (GE Healthcare, Piscataway, NJ), Sonos 5500 (Philips Medical systems, Eindhoven, Netherlands), HD11XE (HP Medical systems, Dalian, China), and Mindray DC-8 (Mindray Medical International Limited, Senzheng, China) ultrasound systems, with 2, 3, and 5 MHz convex transducer. The ultrasound operators were blinded regarding CT findings. The liver and spleen of the patients were scanned carefully with reference to literature [6] ; the operators routinely used inspiration breath hold manoeuvre and all possible windows through the subxiphoid area, subcostal area, and the intercostal space, to bring more of the left lobe under the probe. Representative images were saved digitally in the Picture Archiving and Communication Systems (PACS). The size, echo patterns and associated findings of the liver and splenic lesions were studied. Some of the findings are illustrated in figures 1-3.
5
Comprehensive PCOS Diagnostic Protocol
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All study participants—PCOS women and controls—followed the same study protocol. Clinical examination was performed in all women. Clinical hyperandrogenism was evaluated using the modified Ferriman–Gallwey score for hirsutism (more than eight points was considered as clinical hyperandrogenism) and/or presence of acne. Oligo/amenorrhea and anovulation were considered when women had fewer than six menses during the previous year. Ultrasound scans were done for all the patients by the same gynecologist with a 5–9 MHz transvaginal transducer (Voluson 730 Expert GE Healthcare) in the early follicular phase of the menstrual cycle. Ovarian volume was calculated using the simplified formula for a prolate ellipsoid (26 (link)). Studies were performed in the PCOS group 3–5 days after a spontaneous menses or independent of cycle phase in the presence of amenorrhea. In the control group, the studies were performed during the early follicular phase (3–5 days) of their menstrual cycles.
6
Uterine Radial Artery Resistance Index Monitoring
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To obtain URa-RI, an ultrasonographic scan of the uterus was performed. The midsagittal section of the uterus was secured, and the radial arteries were identified in the mid-section of the myometrium as previously reported [23 (link)]. The URa-RI at the ascending branch of the artery was measured with Voluson 730 Expert (version 5.0x; GE Medical Systems). The URa-RI was monitored with an ultrasound at the time of a positive pregnancy test and every two weeks until 32-week gestation or the time of miscarriage (Figures 2(a) and 2(b) ). During clinical follow-up, it was inevitable that some subjects did not follow the prescribed time to visit the clinic. We “pooled” the 4- and 5-week data and present as 4-week data. This method was applied to the subsequent weeks of pregnancy. In summary, we analyzed and compared the URa-RI levels before pregnancy (baseline) and at 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, and 32 weeks during pregnancy to predict pregnancy outcomes.
7
Primate Pregnancy Monitoring via Ultrasound
8
Uterine and Ovarian Vascular Assessments
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Ultrasound examinations were performed using a Voluson 730 Expert (GE Healthcare, Buckinghamshire, UK) apparatus with a 4–9 MHz endovaginal probe between days 20 and 22 of the menstrual cycle. The ultrasound settings were standardized, with a pulse repetition frequency of 1.3 kHz for the uterine and ovarian arteries and 1.1 kHz for the spiral artery to evaluate a minimum flow velocity of 5 cm/sec, gain of 3.4, a low wall motion filter (1), the harmonic setting at low, and power at 100%. The same procedure was applied to all patients. Transverse and sagittal imaging of the uterus and ovaries was performed using an endovaginal probe. The spiral arteries were assessed within a 1-mm area parallel to the myometrium–endometrium border by color Doppler. The descending branches of the uterine artery were measured at the level of the internal os of the cervix uteri. The ovarian arteries were evaluated as the large vessels at the level of the ovarian hilum. The PI and RI of both the right and left uterine and ovarian arteries were calculated. Average values were recorded.
9
Ovarian Reserve Assessment and Controlled Ovarian Stimulation
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On the day of oncofertility counseling (d0), a transvaginal ovarian ultrasound scan for follicle measurements as well as blood sampling for serum AMH and progesterone levels assessment were performed for each woman in order to estimate ovarian reserve and the phase of the cycle. Further, each patient underwent regular ovarian ultrasound scan and blood work for monitoring COS, until the dOT.
Ovarian ultrasound scans were performed using a 5.0–9.0 MHz multi-frequency transvaginal probe (Voluson 730 Expert®, General Electric Medical Systems, Paris, France). All follicles measuring 3–22 mm in mean diameter (mean of two orthogonal diameters) in each ovary were counted. Only antral follicles <8 mm were considered for AFC at d0 and follicles between 16 and 22 mm on dOT were considered for pre-ovulatory follicle count (PFC). To optimize the reliability of ovarian follicular assessment, the ultrasound scanner was equipped with a tissue harmonic imaging system, which allowed improved image resolution and adequate recognition of follicular borders.
Ovarian ultrasound scans were performed using a 5.0–9.0 MHz multi-frequency transvaginal probe (Voluson 730 Expert®, General Electric Medical Systems, Paris, France). All follicles measuring 3–22 mm in mean diameter (mean of two orthogonal diameters) in each ovary were counted. Only antral follicles <8 mm were considered for AFC at d0 and follicles between 16 and 22 mm on dOT were considered for pre-ovulatory follicle count (PFC). To optimize the reliability of ovarian follicular assessment, the ultrasound scanner was equipped with a tissue harmonic imaging system, which allowed improved image resolution and adequate recognition of follicular borders.
10
Ovarian Volume Assessment Protocol
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All women underwent ultrasonographic assessment of the ovaries in the early follicular phase of the menstrual cycle. The procedure was performed by the same gynecologist with a 5–9 MHz transvaginal transducer (Voluson 730 Expert GE Healthcare). Ovarian volume was calculated with the simplified formula for a prolate ellipsoid (21 (link)).
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