midwife's ultrasoundwayne gerardalexis hopepratik prasadsanjana prasainmitch ishimitsujohn porteralex phammatthew hicks

background

• uganda: high maternal mortality rate

• main complications: placenta previa, breech presentation, & multiple fetuses

• ultrasound imaging can detect these complications

• we are developing (with Dr. Rob Nathan) a portable ultrasound machine specifically for midwives, who are central to ugandan communities

research & design process

hardware

• lenovo ideapad s10-3to touch screen

• interson AB 3.5 MHz ultrasound probeo donatedo SDK provided by interson

very minimal, however DLL written in C++

which encapsulates functions necessary to interface with probe

user interface

• originally written in LabVIEWo couldn't interface with DLLs 

• switched to C# 2 weeks agoo no problems encountered

 • features and workflow refined

after meeting with Nicole Goldsmith, ultrasound technician

• ready for usability testing!

prototype demo

evaluation plans

• short term:o 2nd evaluation of features & workflow by UW

ultrasound technician Nicole Goldsmith

o usability evaluation by 2 local midwives: both have experience working in international,

resource-constrained environments (Vanuatu & Haiti)

• long term: o usability evaluation in Uganda

challenges

• hardware interfaceo unfamiliarity with tools involved

C sdk itself Windows API

• labVIEWo couldn't interface with our libraries properlyo C# works great!

future work

• user testing in uganda

• platform-independent software

• patient data system

• more comprehensive help system

acknowledgments

Dr. Rob Nathan Dr. David Zar Ruth Anderson

Beth KolkoWaylon BrunetteNicole Goldsmith 

questions?