A method and device that provide improved visualization of soft tissue, such as renal arteries, renal veins and lymph nodes in guiding catheter placement and positioning in the renal region or vasculature. The method and device enable visualization of an electrophysiology catheter application in the renal region which provides for improved imaging of renal structures, including renal arteries, along with one or more adjacent anatomical structures, including renal veins, lymph nodes, other adjacent organs and and/or other adjacent soft tissues that may adversely impact the formation of a lesion during a catheter ablation procedure in or around a renal artery.

This document discusses, among other things, systems and methods to electrically modulate a patient's pineal gland to control release of melatonin from the pineal gland and regulate melatonin levels of the patient, the electrically modulating the patient's pineal gland including delivering a neuromodulation waveform using at least one electrode to modulate a superior cervical ganglion or ganglia.

A magnetic resonance imaging (MRI) system is provided for imaging immune response of soft tissue to therapy by, prior to therapy, administering a contrast agent to the soft tissue; imaging a region of interest using delta relaxation enhanced magnetic resonance (DREMR) to define a functional section; selectively sampling local cells in the functional section; conducting immuno-assay analysis on the sampled local cells; and following therapy, further imaging said region of interest using DREMR to assess immune response of said cells to therapy.

A method of assessing the brain lymphatic or glymphatic system and the glucose transporter function on blood-cerebrospinal fluid barrier (BCSFB) of a subject using D-glucose or a D-glucose analog. A spatial map is generated of water MR signals that are sensitized to changes in D-glucose or a D-glucose analog in cerebrospinal fluid (CSF) of the subject. The spatial map is observed at one or more time points before, one or more time points during, and one or more time points after, raising the blood level of the D-glucose or a D-glucose analog in the subject CSF. A difference is detected between the MR signals of the spatial map before, during, and after raising the blood level of D-glucose or a D-glucose analog. A physiological parameter associated with the brain lymphatic or glymphatic system and the glucose transporter function on BCSFB of the subject is ascertained based on the detected difference.

Provided herein are methods of evaluating efficacy of a treatment in a subject having eye inflammation (e.g., a subject having dry eye syndrome) and selecting a subject for participation in a clinical study. Also provided are methods of treating a subject having eye inflammation (e.g., a subject having dry eye syndrome).

Stimulation of neural activity in a nerve supplying the spleen, wherein the nerve is adjacent to the splenic artery at a position where the splenic artery is not in direct contact with the pancreas, can modulate pro- and anti-inflammatory molecules levels, thereby reducing inflammation and providing ways of treating disorders, such as disorders associated with inflammation. The invention provides improved ways of reducing inflammation with minimized off-target effects, in particular surgical trauma.

Provided herein are methods of evaluating efficacy of a treatment in a subject having eye inflammation (e.g., a subject having dry eye syndrome) and selecting a subject for participation in a clinical study. Also provided are methods of treating a subject having eye inflammation (e.g., a subject having dry eye syndrome).

Systems and methods are provided for performing a medical procedure within a patient's body that involves a thoracic duct including an ostium communicating with the patient's venous system. A distal end of a catheter is introduced through the patient's venous system into a body lumen adjacent the ostium of the thoracic duct. An expandable member on the distal end of the tubular member may be expanded adjacent the ostium, e.g., within the body lumen or the thoracic duct itself, and used to isolate the thoracic duct from the body lumen, whereupon a medical procedure may be performed via the thoracic duct. For example, lymphatic fluid may be removed from the thoracic duct through a lumen of the tubular member and/or one or more agents may be introduced into the thoracic duct through the tubular member.

Disclosed are devices, systems and methods for neural signal detection of immune responses. In some aspects, a system includes a processing unit: a receiving unit configured to receive at least one sensor signal from a wearable sensor, where the wearable sensor is configured to detect at least one neural signal of a patient; and a tangible non-transitory computer readable medium having instructions configured to cause the processing unit to automatically receive a data signal from the receiving unit, automatically detect an immune response based at least in part on the data signal, automatically create a notification based at least in part on the immune response, and automatically present the notification to a user of the system.

Systems, methods, and non-transitory computer-readable storage media for constructing a clinically-derived and personalized blood cell mobilization prediction models, enhancing the understanding of a blood tests by excluding the contemporary effect of the contemporary activity from the contemporary blood sample data, optimizing a vaccine by maximizing a concentration of a collection of immune cells which interact with the collection of antigens present in the vaccine can be prescribed, and enhancing the reliability of activity data by accounting for inconsistencies, gaps in data, etc. that is collected from telemetric devices.