en 4-Biomedical Signal & Image Processing Biomedical Signal & Image Processing Review Paper Review Paper <span style="font-size:10.0pt"><span new="" roman="" style="font-family:" times="">Increasing the frame rate of ultrasound imaging while keeping image quality is important for following fast movements, especially the heart. There are different modalities for B-mode image recording, including line-by-line scanning with linear, phased, convex array, synthetic aperture imaging (STA), plane waves (PWI), then the combination of plane waves (CPWI), and so on. Researchers have tried to increase the frame rate in each case using different methods. Three approaches for this aim are data acquisition, post-processing, and beamforming. This article reviews these approaches and their solutions for compensating image quality reduction. Ultrafast ultrasound imaging, which provides exceptional temporal resolution (high frame rate), is promising in diagnosing heart diseases due to its ability to capture rapid heart movements. It can record images faster than conventional imaging, usually exceeding 1000 frames per second. This can be achieved through plane wave imaging (PWI). However, high frame rate data acquisition can lead to a decrease in image quality. Transmitting at different angles and then combining plane wave imaging is a popular method to enhance PWI quality but reduces the frame rate by the number of angles. As a result, researchers have aimed to increase the temporal resolution while compensating for the loss of quality.</span></span> ultrasound, conventional imaging, plane wave imaging, neural network, frame rate, beamforming. 164 184 http://ijeee.iust.ac.ir/browse.php?a_code=A-10-205-4&slc_lang=en&sid=1 Seyyedeh Ensiyeh Hashemi ensiyeh_hashemi@elec.iust.ac.ir 1800319475328460017248 1800319475328460017248 No The Department of Biomedical Engineering, School of Electrical Engineering, Iran University of Science and Technology, Tehran, 1684613114, Iran. Hamid Behnam behnam@iust.ac.ir 1800319475328460017249 1800319475328460017249 Yes The Department of Biomedical Engineering, School of Electrical Engineering, Iran University of Science and Technology, Tehran, 1684613114, Iran.