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  1. 4141
    “…Therefore, a EUS was performed observing an anechoic path that communicates the duodenal wall with a right subhepatic collection that was in contact with the proximal bile duct, thickening its walls. …”
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    Hepatoduodenal fistula closure diagnosed and characterized Ecoendoscopically (EUS) and managed by OTSC CLIP OVESCO: A case report
  2. 4142
    “…Although radiography revealed no abnormal findings in the carpal bones, ultrasonography depicted anechoic fluid and synovial cell proliferation within the common digital extensor tendon sheath. …”
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    Diagnostic imaging features, cytological examination, and treatment of lymphocytic tenosynovitis of the common digital extensor tendon sheath in an eventing horse
  3. 4143
    “…To this end, we thoroughly investigate all 18 available 3D antenna radiation patterns of the antenna measured in an anechoic chamber with respect to radiation coverage in the horizontal and vertical direction and propose a generalization of the power-pattern cross-correlation (PPCC) algorithm involving a high number of multiple calibration planes (MCP) as well as specific combinations of radiation pattern sets. …”
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    Direction of Arrival Estimation Based on Received Signal Strength Using Two-Row Electronically Steerable Parasitic Array Radiator Antenna
  4. 4144
    “…Five computerized features, including anechoic area, hyperechoic foci, hypoechoic pattern, heterogeneous texture, and indistinct margin, were tested, with AUCs ranging from 0.888~0.946, 0.825~0.913, 0.812~0.847, 0.627~0.77, and 0.676~0.766, respectively. …”
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    Assessing Detection Accuracy of Computerized Sonographic Features and Computer-Assisted Reading Performance in Differentiating Thyroid Cancers
  5. 4145
    por Fonseca, Nelson J. G.
    Publicado 2023
    “…The on-axis XPD, measured in an anechoic chamber, is better than 30 dB over the nominal bandwidth, which is also in line with simulations. …”
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    Very Compact Waveguide Orthomode Transducer in the K-Band for Broadband Communication Satellite Array Antennas
  6. 4146
    “…For a loop-type propeller, an experimental investigation was conducted in association with its aerodynamic and acoustic characteristics via a hover stand test in an anechoic chamber; the psychoacoustic performance was then examined with psychoacoustic annoyance models to evaluate five psychoacoustic metrics comprising loudness, fluctuation strength, roughness, sharpness, and tonality. …”
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    Integrated Evaluation of the Aeroacoustics and Psychoacoustics of a Single Propeller
  7. 4147
    “…MATERIAL AND METHODS: A total of 15 patients using a VSB were measured using the adaptive categorical listening effort scaling (ACALES) method in a ring of loudspeakers placed in an anechoic room. Different background noises from different directions and simultaneously presented sentences from the Oldenburg sentence test were combined in four different realistic acoustic scenes. …”
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    Einfluss von Richtmikrofonie auf die Höranstrengung bei Mittelohrimplantatträgern
  8. 4148
    “…The ranulas were all in close anatomical relationship to the sublingual gland (SLG) and mylohyoid muscle (MM). The echo texture was hypoechoic to anechoic in 97.6% of the lesions. …”
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    Ultrasound in the diagnosis and differential diagnosis of enoral and plunging ranula: a detailed and comparative analysis
  9. 4149
    “…MCP may arise as a result of anechoic cystic fluid filling the loose tissue gap.…”
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    Can the ultrasound microcystic pattern accurately predict borderline ovarian tumors?
  10. 4150
    “…CASE REPORT: A 17-year-old pregnant woman in her second gestation, at 23 weeks of pregnancy, presented an ultrasound with evidence of a cystic anechoic image in the fet al left hemithorax. A morphological ultrasound examination performed at the hospital found that this cystic image measured 3.7 cm x 2.1 cm x 1.6 cm. …”
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    Comorbidity between Klinefelter syndrome and diaphragmatic hernia. A case report
  11. 4151
    “…Moreover, fibrous tissue formation was diagnosed. In the left leg, anechoic fluid in the calcaneous bursa was seen. Evaluation of diagnostic imaging findings enables veterinarians to diagnose the site and extent of the lesions, choosing the appropriate therapeutic approach in addition to clinical symptoms.…”
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    Evaluation of clinical and diagnostic imaging findings of bilateral superficial digital flexor tendon luxation in the tarsus of a gelding
  12. 4152
    “…With the rabbit placed in an anechoic chamber, we made acoustic measurements with miniature microphones placed deep in each ear canal to a sound source at different positions (10–160 cm distance, ±150° azimuth). …”
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    Acoustic Cues for Sound Source Distance and Azimuth in Rabbits, a Racquetball and a Rigid Spherical Model
  13. 4153
    “…Peritendinous oedema was observed at day 7, but intratendinous lesions were visible only at day 21 as a focal hypo to anechoic area. At day 84, two tendons still presented visible lesions. …”
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    Ultrasonograph and Clinical Quantitative Characterization of Tendinopathy by Modified Splitting in a Goat Model
  14. 4154
    “…The gallbladder, rounded and filled with anechoic content was visualized in all coatis, to the right of the midline. …”
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    Normal sonographic anatomy of the abdomen of coatis (Nasua nasua Linnaeus 1766)
  15. 4155
    “…Most PHNETs occurred in middle-aged patients, and the most common clinical manifestation was right upper quadrant palpable mass and abdominal pain. Multiple small anechoic intralesional cavities occurred frequently in PHNET. …”
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    Case Report of Contrast-Enhanced Ultrasound Features of Primary Hepatic Neuroendocrine Tumor: A CARE-Compliant Article
  16. 4156
    “…Endoscopic ultrasonography using a miniature probe system (20 MHz) revealed a hypoechoic mass with multiple anechoic lesions (16-mm diameter) located in the mucosal layer. …”
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    Foveolar gastric metaplasia presenting as a duodenal tumor with an atypical appearance: a case report
  17. 4157
    por Bayoumi, Yasmin H., Attia, Noura E.
    Publicado 2017
    “…Ultrasonographically, distended urinary bladder with distal acoustic enhancement revealed obstructive urolithiasis with intact bladder while anechoic fluid in abdominal cavity indicates uroperitoneum. …”
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    Comparative study of obstructive urolithiasis and its sequelae in buffalo calves
  18. 4158
    “…Acoustic analyses confirmed the expected changes in stimulus features that are thought to underlie radial and angular source movements under anechoic conditions and suggested a special role of monaural spectral changes under reverberant conditions. …”
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    Sensitivity to Angular and Radial Source Movements as a Function of Acoustic Complexity in Normal and Impaired Hearing
  19. 4159
    por Shih, Hsiang Yao, Wu, Deng Chyang
    Publicado 2017
    “…EUS was scheduled and it demonstrated an anechoic homogeneous lesion arising between muscularis mucosae layer (second layer) and submucosa layer (third layer) on the anterior wall of the antrum (size: 8.3 mm × 4.7 mm). …”
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    P-LUM-02: Gastric duplication cyst diagnosed with endosonography and managed with modified endoscopic mucosal resection in one session of endoscopy
  20. 4160
    “…The 3DTI Toolkit renders the anechoic signal path by convolving sound sources with Head Related Impulse Responses (HRIRs), obtained by interpolating those extracted from a set that can be loaded from any file in a standard audio format. …”
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    3D Tune-In Toolkit: An open-source library for real-time binaural spatialisation
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