1
Paul G Yock, James W Arenson: Laser catheter with imaging capability. Cardiovascular Imaging Systems, Townsend and Townsend, July 9, 1991: US05029588 (213 worldwide citation)

Vascular catheters include ultrasonic imaging capability and optical waveguides for delivering laser energy for ablating vascular obstructions. The ultrasonic imaging capability comprises a fixed ultrasonic transducer which directs ultrasonic energy at a reflective surface on a rotating element. The ...


2
James W Arenson, Ismayil M Guracar, Janna G Clark, Marc D Weinshenker: Ultrasonic tissue imaging method and apparatus with doppler velocity and acceleration processing. Acuson Corporation, James F Mitchell, February 15, 1994: US05285788 (95 worldwide citation)

An ultrasound tissue imaging system having an acoustic transducer, B-mode imaging means to produce with said transducer an electronically scanned B-mode image of tissue under examination, Doppler imaging means that accepts and processes large amplitude, low frequency signals to produce with said tra ...


3
John A Hossack, Bhaskar S Ramamurthy, John S Wang, Kutay F Ustuner, Ching Hua Chou, James W Arenson, Arvind Jain: Ultrasound imaging system and method for improving resolution and operation. Acuson Corporation, Brinks Hofer Gilson & Lione, February 23, 1999: US05873830 (91 worldwide citation)

An ultrasound system and method are provided for improving resolution and operation. The system applies different imaging parameters within and outside a region of interest in an ultrasound image to improve spatial and/or temporal resolution inside a region of interest. The system also increases an ...


4
Hira V Thapliyal, David A Gallup, James W Arenson: Method for ablating body tissue. VytronUS, Kilpatrick Townsend & Stockton, May 31, 2011: US07950397 (71 worldwide citation)

A cardiac ablation method including the following steps: inserting a treatment catheter into an atrium of a heart, the treatment catheter including an ultrasound emitter; positioning the ultrasound emitter to face heart tissue within the left atrium outside of a pulmonary vein; emitting ultrasound e ...


5
James W Arenson, Douglas M Bruce, John J Cabrall, Paul E Cayer, Vaughn R Marian, Jean S Polinger, Richard J Stevens: Needle guide for assembly upon an ultrasound imaging transducer. Acuson Corporation, James F Mitchell, December 31, 1991: US05076279 (60 worldwide citation)

A biopsy needle guide for assembly with an ultrasound imaging transducer including a transducer nosepiece and a needle guide having at least one set of alignment means and a spring means for securing the needle guide to the transducer nosepiece while simultaneously stretching and holding a sterile c ...


6
Dave Hedberg, Ismayil M Guracar, Michael J Tierney, Stuart Carp, James W Arenson, Samuel H Maslak: Ultrasound imaging method and apparatus with dynamic non-linear filtering. Acuson Corporation, March 7, 1995: US05396285 (60 worldwide citation)

Methods and apparatus for enhancing the clarity of and the diagnostic information in real-time B-mode and M-mode ultrasound displays including a beamformer for acquiring ultrasound receive signals for each ultrasound scan line of a two-dimensional image and processing the receive signals for each ul ...


7
John I Jackson, James W Arenson: Ultrasound system and method for facilitating a reproducible ultrasound imaging environment. Acuson Corporation, Brinks Hofer Gilson & Lione, December 7, 1999: US05997478 (20 worldwide citation)

An ultrasound system and method are presented for facilitating a reproducible ultrasound imaging environment by reducing the variability in ultrasound parameters as a source of discrepancy when performing serial studies. In this way, an operator can rigorously compare ultrasound images from a single ...


8
James W Arenson, Stanley S C Chim, Ismayil M Guracar, Samuel H Maslak, Shuwu Wu, Carrie L Peressini, Janice L Marshall: Imaging modality showing energy and velocity. Acuson Corporation, Morrison & Foerster, January 23, 2001: US06177923 (15 worldwide citation)

Both the energy and velocity contents of received Doppler and time shift signals are simultaneously displayed. A continuous range of imaging modes are provided ranging from velocity imaging to energy imaging. The user may select the particular imaging mode desired for a particular clinical applicati ...


9
Hira V Thapliyal, David A Gallup, James W Arenson: Device for ablating body tissue. VytronUS, Kilpatrick Townsend & Stockton, May 17, 2011: US07942871 (12 worldwide citation)

A cardiac ablation system including an ablation catheter having an anchor adapted to support the ablation catheter within an atrium of a heart and an ultrasound emitter disposed radially outward from a rotation axis and from the anchor, and a control mechanism adapted to rotate the ultrasound emitte ...


10
James W Arenson, Stanley S C Chim, Ismayil M Guracar, Samuel H Maslak: Adaptive temporal filtering to enhance fluid flow or tissue motion imaging. Acuson Corporation, Brinks Hofer Gilson & Lione, May 4, 1999: US05899864 (11 worldwide citation)

The energy, power or amplitude of Doppler or time shift information signals is compared to a threshold in order to select a large or small weighting factor for temporal persistence. In the event of a "flash" signal or strong arterial flow signal, a small weighting factor is chosen to reduce the exte ...