An acoustic wave diagnostic apparatus 1 includes a display unit 7; an operation unit 16; a measurement item designation acceptance unit 13 that accepts designation of a measurement item; a detection and measurement algorithm setting unit 9 that sets a detection and measurement algorithm according to a measurement item; a position designation acceptance unit 14 that accepts designation of a measurement position; a measurement unit 8 that detects a measurement target and sets a caliper on the measurement target to perform measurement on the basis of the measurement position and the detection and measurement algorithm; a contour detection unit 10 that detects a contour of the measurement target; a caliper movable range limit unit 11 that limits a movable range of the caliper on the contour of the measurement target according to a modification request of the caliper; and a modification acceptance unit 15 that accepts a modification of the caliper through the operation unit 16, in which the measurement unit 8 performs measurement using the modified caliper.

A method of compressing tissue during a surgical procedure is disclosed. The method comprises obtaining a surgical instrument comprising an end effector, wherein the end effector comprises a first jaw and a second jaw, establishing a communication pathway between the surgical instrument and a surgical hub, and inserting the surgical instrument into a surgical site. The method further comprises compressing tissue between the first jaw and the second jaw, determining a location of the compressed tissue with respect to at least one of the first jaw and the second jaw, communicating the determined location of the compressed tissue to the surgical hub, and displaying the determined location of the compressed tissue on a visual feedback device.

A method for processing an intravascular image including a plurality of image frames acquired during a pullback of an imaging catheter inserted into a vessel, the method including displaying on a graphical user interface (GUI) an image including detected results of lumen borders and at least one stent, the image including an evaluated stent expansion and an evaluated stent apposition determined from the intravascular image. The method also includes determining whether a modification to the detected results of the stent has been received by the GUI. Then, re-evaluating stent length, stent expansion and stent apposition when it is determined that the detected results of the stent has been modified via the GUI and displaying the re-evaluated stent expansion and the re-evaluated stent apposition on the GUI.

A surgical visualization feedback system is disclosed. The surgical visualization feedback system comprises an emitter assembly configured to emit electromagnetic radiation toward an anatomical structure. The emitter assembly comprises a structured light emitter configured to emit a structured light pattern on a surface of the anatomical structure and a spectral light emitter configured to emit spectral light capable of penetrating the anatomical structure. The surgical visualization feedback system further comprises a waveform sensor assembly configured to detect reflected electromagnetic radiation corresponding to the emitted electromagnetic radiation and a control circuit in signal communication with the waveform sensor assembly. The control circuit is configured to receive an input corresponding to a selected surgical procedure, determine an identity of a targeted structure within the anatomical structure based on the selected surgical procedure and the reflected electromagnetic radiation, and confirm the determined identity of the targeted structure through a user input.

Systems and methods for rapidly and reliably determining an arch with of a patient's dental arch. A patient's dentition may be scanned and/or segmented. Arch width may be determined between points of intersection on the occlusal surface and a long axis of each tooth between one or more of: canine, first bicuspid, first primary molar, second bicuspid, second primary molar, and permanent first molar. Arch widths of different modified versions of the patient's dentition may be dynamically compared the patient's starting dentition, or to each other, and may be dynamically updated as the user modifies or switches between one or more 3D models of the patient's dentition.

An exemplary embodiment relates to a measuring method (50) and to a measuring device (10) in order to determine a length or an area within a scene (32) which are characterized at least partially by a real start point (40-2) and a real end point (42-2), wherein the measurement takes place using at least two images (18, 20) and it is thereby not necessary for the real start point (40-2) and the real end point (42-2) to be imaged in one of the images (18, 20).

A system is disclosed that includes an optical fiber including a first optical module and a gate. The gate can be capable of moving between closed and opened states to form a slit. At least one storage medium can be included having encoded thereon executable instructions that, when executed by the at least one processor, cause the system to carry out a method including directing light from the first optical module through the slit onto the stone to form a pair of lines with a spacing between the pair of lines; and determining a size of the stone, based on a distance from a distal tip of the optical fiber and the spacing between the pair of lines.

Devices and methods are disclosed for determining prostatic urethral length. A balloon catheter subassembly is in fluid communication between an inner cavity of a syringe body and an expandable balloon is positioned at a distal end of the balloon catheter subassembly. An adapter secured to the syringe body having a syringe plunger includes a lock that engages the syringe plunger at a predefined position with respect to the syringe body corresponding to a desired inflation state of the expandable balloon. Prostatic urethral length can then be determined using markings indicating distance from the expandable balloon.

A surgical system used to determine a size of a vessel within a region proximate to a working end of a surgical instrument includes at least one light emitter disposed at the working end, an array of light sensors disposed opposite the at least one light emitter, the array comprising a least one row of light sensors, individual light sensors in the row adapted to generate a signal comprising a pulsatile and a non-pulsatile component, and a controller coupled to the array, the controller comprising a splitter to separate the pulsatile component from the non-pulsatile component, and an analyzer to determine the magnitudes of the pulsatile and non-pulsatile components at the individual light sensors, to determine a first peak magnitude and a second peak magnitude of the pulsatile components, and to determine a resting outer diameter of the vessel based on the first and second peak magnitudes.

The invention relates to a computer-implemented method (10) for determining the blood volume flow (I.sub.BI) through a portion (90.sub.i, i=1, 2, 3, . . . ) of a blood vessel (88) in an operating region (36) using a fluorophore. A plurality of images (80.sub.1, 80.sub.2, 80.sub.3, 80.sub.4, . . . ) are provided, which are based on fluorescent light in the form of light having wavelengths lying within a fluorescence spectrum of the fluorophore, and which show the portion (90.sub.i) of the blood vessel (88) at different recording times (t.sub.1, t.sub.2, t.sub.3, t.sub.4, . . . ). By processing at least one of the provided images (80.sub.1, 80.sub.2, 80.sub.3, 80.sub.4, . . . ), a diameter (D) and a length (L) of the portion (90.sub.i) of the blood vessel (88) and also a time interval for a propagation of the fluorophore through the portion (90.sub.i) of the blood vessel (88) are determined, which time interval describes a characteristic transit time (τ) for the fluorophore in the portion (90.sub.i) of the blood vessel (88), in which a blood vessel model (M.sub.B.sup.Q) for the portion (90.sub.i) of the blood vessel (88) is specified, which blood vessel model describes the portion (90.sub.i) of the blood vessel (88) as a flow channel (94) having a length (L), having a wall (95) with a wall thickness (d), and having a free cross section Q. A fluid flow model M.sub.F.sup.Q for the blood vessel model (M.sub.B.sup.Q) is assumed, which fluid flow model describes a local flow velocity (122) at different positions over the free cross section Q of the flow channel (94) in the blood vessel model (M.sub.B.sup.Q), and a fluorescent light model M.sub.L.sup.Q is assumed, which describes a spatial probability density for the intensity of the remitted light at different positions over the free cross section Q of the flow channel (94) in the blood vessel model (M.sub.B.sup.Q), which light is emitted by a fluid, which is mixed with fluorophore and flows through the free cross section Q of the flow channel (94) in the blood vessel model (M.sub.B.sup.Q), when said fluid is irradiated with fluorescence excitation light. The blood volume flow (I.sub.BI) is determined as a fluid flow guided through the flow channel (94) in the blood vessel model (M.sub.B.sup.Q), which fluid flow is calculated from the length (L) and the diameter (D) of the portion (90.sub.i) of the blood vessel (88) and from the characteristic transit time (τ) for the fluorophore in t