Please assess the completion status of the following clinical trial:

Trial Title: Comparison of Continuous Non-Invasive and Invasive Intracranial Pressure Measurement

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: DIAGNOSTIC
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Clinical diagnosis of suspected symptomatic hydrocephalus or idiopathic intracranial hypertension (pseudotumor cerebri)~* ICP monitoring via 25-ga needle in an existing shunt reservoir or ICP monitoring via spinal catheter has been recommended on the basis of standard clinical criteria~* Capable of providing valid signed informed consent~* Normal middle-ear function as determined by tympanometry~* DPOAE meet criteria that are required for the research~* Acoustic stapedial reflex meets criteria that are required for the research~* Subject is willing and able to return for the study~Exclusion Criteria:~* Subject is pregnant~* Subject lacks decision-making capacity~* Subject is unwilling or unable to return for the study~* Prior middle-ear disease or surgery, with the exception of tympanostomy tubes that have been removed and are healed~* Participating in the study would significantly delay or interfere with the subject's healthcare~* Subject has excess ear wax that cannot be removed safely and could potentially be pushed onto the ear drum by the insertion of the ear plugs needed for the testing~* The TMD or DPOAE do not respond to a change in posture from lying flat to standing up, which means that the anatomic connection between the inner ear and the CSF is absent

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- Hydrocephalus/Pseudotumor (Type: EXPERIMENTAL): Patients between the ages of 18-65 years with suspected hydrocephalus or idiopathic intracranial hypertension (IIH), also known as pseudotumor cerebri, who are recommended by their doctor based on standard clinical criteria to undergo intracranial pressure monitoring. The interventions include tympanic membrane displacement (TMD) and DPOAE.

Based on this trial design, predict the completion outcome and termination type (if applicable).