diff --git a/src/NIfTI.jl b/src/NIfTI.jl
index 9e5a0e1..4294287 100644
--- a/src/NIfTI.jl
+++ b/src/NIfTI.jl
@@ -3,7 +3,7 @@ module NIfTI
 using CodecZlib, Mmap, MappedArrays, TranscodingStreams
 
 import Base.getindex, Base.size, Base.ndims, Base.length, Base.write, Base64
-export NIVolume, niread, niwrite, voxel_size, time_step, vox, getaffine, setaffine
+export NIVolume, niread, niwrite, voxel_size, time_step, vox, getaffine, setaffine, new_vol_like
 
 include("parsers.jl")
 include("extensions.jl")
@@ -176,6 +176,15 @@ function NIVolume(
         (orientation[2, :]...,), (orientation[3, :]...,), string_tuple(intent_name, 16), NP1_MAGIC), extensions, raw)
 end
 
+"""
+    new_vol_like(vol::NIVolume{T}, raw::R) where {R,T}
+
+Convenience function to create a new NIfTI volume with data `raw`, using 
+the header and extensions of `vol`.
+"""
+new_vol_like(vol::NIVolume{T}, raw::R) where {R,T} = NIVolume(vol.header,vol.extensions,raw)
+    
+
 # Validates the header of a volume and updates it to match the volume's contents
 function niupdate(vol::NIVolume{T}) where {T}
     vol.header.sizeof_hdr = SIZEOF_HDR1
diff --git a/test/runtests.jl b/test/runtests.jl
index 29c85c9..a072738 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -93,6 +93,14 @@ const TEMP_GZIPPED_FILE = joinpath(TEMP_DIR_NAME, "$(tempname()).nii.gz")
 niwrite(TEMP_GZIPPED_FILE, vol)
 niread(TEMP_GZIPPED_FILE)
 
+# Test new_img_like
+img = niread(GZIPPED_NII)
+test_raw = ones(size(img))
+new_img = new_vol_like(img, test_raw)
+@test new_img.header == img.header
+@test new_img.raw == test_raw
+@test new_img.extensions == img.extensions 
+
 # Write and read DT_BINARY
 const BOOL_WRITE = joinpath(TEMP_DIR_NAME, "$(tempname()).nii")
 const BIT_WRITE = joinpath(TEMP_DIR_NAME, "$(tempname()).nii")