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4061por Agarwal, Aditi, Prakash, Mahesh, Gupta, Pankaj, Tripathy, Satyaswarup, Kakkar, Nandita, Srinivasan, Radhika, Khandelwal, Niranjan“…These were later diagnosed as lipomas. Four cases were anechoic (diagnosed as ganglions). Only four lesions showed hyperintense signal on T1-weighted images. …”
Publicado 2015
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4062“…Warthin tumor usually presents as a hypoechoic, oval-shaped lesion with anechoic cystic spaces. Malignancies are characterized by blurred outlines, irregular shape, usually heterogeneous echogenicity and pathological neovascularization. …”
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4063“…One of the lesions was solid, situated in the head and neck of the pancreas, hypoechoic, with anechoic areas of cystic degeneration. The second lesion was cystic, hypoechoic, situated in the neck of the pancreas, with exophytic growing. …”
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4064“…RESULTS: Metastatic lymph node detection in sonographic evaluation was associated with echogenic hilus obliteration, complete hypoechoic or anechoic appearance of lymph nodes, and asymmetric/nodal or diffuse cortical thickening greater than 3.8 mm. …”
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4065por Khalphallah, Arafat, Aref, Nasr-Eldin M., Abu-Seida, Ashraf M., Elmeligy, Enas, Bayoumi, Sara A., Al-lethie, Al-lethie A., Salman, Doaa“…Hepatic cyst imaged as a pear-shaped sac with a bright echogenic margin, anechoic content, and distal acoustic enhancement. …”
Publicado 2018
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4066por Gafton, Bogdan, Scripcariu, Viorel, Prutianu, Iulian, Alexa-Stratulat, Teodora, Terinte, Cristina, Nicolau, Andrei, Moisiuc, Diana, Radu, Iulian“…Ultrasound revealed a complex cystic tumor mass of 60 mm in the left breast, with both anechoic (cystic) and echogenic (solid) components, with ill-defined margin. …”
Publicado 2019
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4067por Bertani, Raphael, Abi-Aad, Karl R, Perret, Caio, AlMekkawi, Ahmad K, Monteiro, Ruy“…The ultrasound display showed tubular anechoic intertwined structures that demonstrated bidirectional flow, which is suggestive of an AVM. …”
Publicado 2019
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4068por Di Cicco, Maria, Bellino, Elisabetta Maria, Marabotti, Andrea, Luti, Laura, Peroni, Diego G., Baroncelli, Giampiero I.“…Ultrasound examination showed a well-circumscribed round lesion filled by anechoic fluid with punctate echoes, confirming a diagnosis of acute dacryocystitis complicated by lacrimal abscess. …”
Publicado 2020
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4069“…Examination by colour Doppler ultrasound showed the following: “Twin live births with normal foetal umbilical artery blood flow indexes and a 183 mm × 112 mm anechoic zone in the right front of the uterus”. Initially, we made an incorrect judgement wherein we considered the amniotic sac that was protruding into the abdominal cavity to be an adnexal cyst. …”
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4070por Rodríguez Varela, Fernando, López Morales, Manuel José, Tena Sánchez, Rubén, Muriel Barrado, Alfonso Tomás, de la Fuente González, Elena, Posada Quijano, Guillermo, Zarzuelo Torres, Carlos, Sierra Pérez, Manuel, Sierra Castañer, Manuel“…Finally, some measurement results are given to compare the developed demonstrator with traditional anechoic measurements, and show the potential capabilities of the proposed concept to perform fast and reliable measurements.…”
Publicado 2021
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4071por Felcyn, Jan“…METHODS: 31 people with normal hearing took part in an experiment conducted in an anechoic chamber. Participants listened to 18 different noise recordings and rated each of them using the numerical ICBEN scale regarding noise annoyance. …”
Publicado 2021
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4072Spontaneous ovarian hyperstimulation syndrome in a pregnant woman with hypothyroidism: a case reportpor Oliveira e Souza, Lucas, Innecco Arêas, João Vitor, Rezende Campos, Maria Clara, Innecco Arêas, Isabela, Martins Resende, Bruna Araújo“…Ultrasound evaluation revealed ovarian enlargement secondary to multiple contiguous cysts with anechoic content. The patient was administered levothyroxine 175 μg/day. …”
Publicado 2021
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4073por Reis, João Ricardo, Vala, Mário, Oliveira, Tiago Emanuel, Fernandes, Telmo Rui, Caldeirinha, Rafael Ferreira Silva“…To prove the concept, a prototype of the antenna has been built and experimentally characterised inside an anechoic chamber. Although constructed in a different substrate (FR4 substrate) as initially designed, beamsteering ranges up to [Formula: see text] in azimuth and [Formula: see text] in elevation, limited to the proposed case-studies, are reported with the prototype, validating the antenna and the usefulness of the proposed design.…”
Publicado 2021
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4074por Frías-Fernández, Pedro, Sánchez-Flores, Silviana, García-Chávez, Juan P., Padilla-Rosciano, Alejandro E., Lino-Silva, Leonardo S.“…During the evaluation, an abdominal ultrasound revealed a pancreatic growth that was “bulky, solid, with irregular margins, in homogeneously hypoechoic, with anechoic areas of necrosis, located lateral to the tail of the pancreas and medial to the upper pole of the left kidney and the lower splenic pole”. …”
Publicado 2022
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4075por Üçeyler, Nurcan, Schließer, Mira, Evdokimov, Dimitar, Radziwon, Jakub, Feulner, Betty, Unterecker, Stefan, Rimmele, Florian, Walter, Uwe“…Transcranial ultrasonography revealed anechoic alteration of midbrain raphe in depression and anxiety disorders, suggesting affection of the central serotonergic system. …”
Publicado 2022
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4076por Han, Hyun-Woo, Im, Won-Hong, Choi, Hyo-Joon, Cho, Seung-Je, Lee, Sang-Dae, Park, Young-Jun“…A test was performed while driving a tractor on a chassis dynamometer in a semi-anechoic chamber for reproducible measurement and evaluation. …”
Publicado 2022
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4077Publicado 2000Tabla de Contenidos: “…La luz con el tiempo dentro / Guillermo Tenorio Tagle, Casiana Muñoz-Tuñón -- v.204. ¿De qué está hecho el universo? : materia oscura y energía oscura / Tonatiuh Matos -- v.205. …”
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4078por Tong, Wen-Juan, Wu, Shao-Hong, Cheng, Mei-Qing, Huang, Hui, Liang, Jin-Yu, Li, Chao-Qun, Guo, Huan-Ling, He, Dan-Ni, Liu, Yi-Hao, Xiao, Han, Hu, Hang-Tong, Ruan, Si-Min, Li, Ming-De, Lu, Ming-De, Wang, Wei“…For junior radiologists, the ultrasonographic features that were not improved by AI assistance included cystic or almost completely cystic nodules, anechoic nodules, spongiform nodules, and nodules smaller than 5 mm, whereas for senior radiologists the features that were not improved by AI assistance were cystic or almost completely cystic nodules, anechoic nodules, spongiform nodules, very hypoechoic nodules, nodules taller than wide, lobulated or irregular nodules, and extrathyroidal extension. …”
Publicado 2023
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4079por Makazu, Makomo, Koizumi, Kazuya, Masuda, Sakue, Jinushi, Ryuhei, Shionoya, Kento, Tsukiyama, Toshitaka“…Endoscopic ultrasound revealed a low-echoic mass around the duodenum and high-echoic floating matter suggesting debris and anechoic areas that indicated a liquid component. These findings suggested hematomas or abscesses. …”
Publicado 2023
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4080“…This improvement addresses the issue of a suboptimal coupler split ratio and phase difference, which can affect the accuracy and performance of the symmetric demodulation method. In an anechoic chamber test environment, the symmetric demodulation algorithm implemented with the WDM optical path structure achieved a signal-to-noise ratio (SNR) of 75.5 dB (1 kHz), a sensitivity of 1104.9 mV/Pa (1 kHz), and a linear fitting coefficient of 0.9946. …”
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