Clinical Pilot Study of the Percutaneous Ultrasound Jejunostomy Procedure

Inclusion Criteria: * Informed consent must be obtained before any study-specific assessment is performed * Male or female \> 21 years of age * Estimated tract length (skin to anterior abdominal wall) \<= 4.5cm on prior imaging * Indication for percutaneous jejunostomy tube placement determined to be present by the primary clinical care team (examples below): * High aspiration risk * Malnourished- chronically ill and/or neurologically impaired requiring jejunal feeding for \>30 Days. * Neoplasia (stomach and esophagus) * Gastric and duodenal obstruction * Gastrointestinal dysmotility (gastroparesis) * Altered anatomy (gastric-esophageal surgeries) * Other indication deemed to be appropriate by the study team * Patient determined to be an appropriate candidate for percutaneous jejunostomy by the study team * Women of childbearing potential must have negative serum or urine pregnancy test during the current hospitalization Exclusion Criteria: * Temperature ≥ 38 C * Systolic BP \< 90 or \> 180 mmHg * Heart Rate \< 50 or \> 120 * Presence of a contraindication to being in proximity to a magnet (e.g. pacemaker) * History of prior major abdominal surgery * Patients with HgB \< 7g/dL, or fluid resuscitated within 48hrs prior, or history of life-threatening gastrointestinal bleeding within 1 month * Pregnant or nursing (lactating) women * Involvement in other investigational trials within 30 days prior to screening * Absolute contraindications: * Sepsis * Severe ascites * Peritonitis * Coagulopathy (international normalized ratio (INR) greater than 1.5 or a platelet count of less than 50,000/uL) * Abdominal wall infection at the site of planned tube insertion * Interposed organs as determined by imaging * Abnormal upper gastrointestinal anatomy (e.g., partial or Total gastrectomy, Esophageal strictures) * Inflammatory, or infiltrative diseases of the small bowel and/or anterior abdominal wall. * Other standard general contraindications to endoscopy * Pacemakers or other electronically active implantable devices * Small bowel fistula * Any other medical condition(s) that may put the patient at risk or influence study results in the investigator's opinion, or that the investigator deems unsuitable for the study.