hanadr is quite correct. Dietary fat intake has little impact upon cholesterol levels, nor is the total cholesterol reading very significant.
Insulin is the primary determinant of cholesterol, which is principally made in the liver (80%) and from the diet (20%). Raised levels of insulin reduce the proportion of HDL (good cholesterol) and increase levels of LDL (bad cholesterol). Raised insulin also increases the production of triglycerides, another factor in determining heart disease risk.
The bottom line is that the lower your insulin requirements, the lower your heart disease risk. It makes low-carb, since it requires much less insulin than a 'traditional' diet, a no-brainer.
All the best,
fergus