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3篇 您的检索式：作者名="Rehman Ansari"

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		题名	作者	年代	出处	被引量
	1	All-optical forward-viewing photoacoustic probe for high-resolution 3D endoscopy显示文摘A miniature forward-viewing endoscopic probe that provides high-resolution 3D photoacoustic images is demonstrated.The probe is of outer diameter 3.2mm and comprised of a transparent Fabry-Pérot(FP)polymer-film ultrasound sensor that is located at the distal end of a rigid optical fiber bundle.Excitation laser pulses are coupled simultaneously into all cores of the bundle and are transmitted through the FP sensor to provide wide-field tissue illumination at the distal end.The resulting photoacoustic waves are mapped in 2D by sequentially scanning the input end of the bundle with an interrogation laser beam in order to individually address different points on the FP sensor.In this way,the sensor acts as a high-density ultrasound array that is comprised of 50,000 individual elements,each of which is 12μm in diameter,within the 3.2mm diameter footprint of the probe.The fine spatial sampling that this affords,along with the wide bandwidth(f_(-3dB)=34 MHz)of the sensor,enables a high-resolution photoacoustic image to be reconstructed.The measured on-axis lateral resolution of the probe was depth-dependent and ranged from 45-170μm for depths between 1 and 7 mm,and the vertical resolution was 31μm over the same depth range.The system was evaluated by acquiring 3D images of absorbing phantoms and the microvascular anatomies of a duck embryo and mouse skin.Excellent image fidelity was demonstrated.It is anticipated that this type of probe could find application as a tool for guiding laparoscopic procedures,fetal surgery and other minimally invasive interventions that require a millimeter-scale forward-viewing 3D photoacoustic imaging probe.	Rehman Ansari Edward Z.Zhang Adrien E.Desjardins Paul C.Beard	2018	Light(Science & Applications)2018，7，1：	11
	2	Pro-apoptotic effect of fly ash leachates in hepatocytes of freshwater fish ( Channa punctata Bloch)显示文摘	Mehboob Ali Shakilur Rahman Hasibur Rehman Kanchan Bhatia Rizwan A. Ansari Sheikh Raisuddin	2006	Toxicology in Vitro2006，，1：	1
	3	The feasibility of using an industrial sewage sludge produce in Pakistan as agricultural fertilizer used for cultivation of Sorghum bicolor L显示文摘	Mohammad Khan Jamali Tasneem Gul Kazi Mohammad Balal Arain Hassan Imran Afridi Nusrat Jalbani Atteeq ur Rehman Memon Rehana Ansari Afzal Shah	2007	Archives of Agronomy and Soil Science2007，，6：	1

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