XA calibration data for quantitative analysis. More...

#include <xa_storage.h>

Collaboration diagram for kcenon::pacs::services::sop_classes::xa_calibration_data:

Public Member Functions
double	magnification_factor () const noexcept
	Calculate magnification factor.

double	isocenter_pixel_spacing () const noexcept
	Calculate pixel spacing at isocenter.

bool	is_valid () const noexcept
	Check if calibration data is valid for measurements.

Public Attributes
double	imager_pixel_spacing [2]
	Pixel spacing at detector (mm)

double	distance_source_to_detector
	SID in mm.

double	distance_source_to_patient
	SOD in mm.

Detailed Description

XA calibration data for quantitative analysis.

Contains pixel spacing and geometry calibration data essential for Quantitative Coronary Analysis (QCA) and other measurements.

Definition at line 279 of file xa_storage.h.

Member Function Documentation

◆ is_valid()

bool kcenon::pacs::services::sop_classes::xa_calibration_data::is_valid ( ) const

nodiscardnoexcept

Check if calibration data is valid for measurements.

Returns: true if all required values are present and valid

Definition at line 204 of file xa_storage.cpp.

                                                  {
    return imager_pixel_spacing[0] > 0.0 &&
           imager_pixel_spacing[1] > 0.0 &&
           distance_source_to_detector > 0.0 &&
           distance_source_to_patient > 0.0 &&
           distance_source_to_detector > distance_source_to_patient;
}

References distance_source_to_detector, distance_source_to_patient, and imager_pixel_spacing.

◆ isocenter_pixel_spacing()

double kcenon::pacs::services::sop_classes::xa_calibration_data::isocenter_pixel_spacing ( ) const

nodiscardnoexcept

Calculate pixel spacing at isocenter.

Returns: Calibrated pixel spacing at isocenter in mm

Definition at line 195 of file xa_storage.cpp.

                                                                   {
    double mag = magnification_factor();
    if (mag <= 0.0 || imager_pixel_spacing[0] <= 0.0) {
        return 0.0;
    }
    // Pixel spacing at isocenter = detector pixel spacing / magnification
    return imager_pixel_spacing[0] / mag;
}

References imager_pixel_spacing, kcenon::pacs::services::sop_classes::mag, and magnification_factor().

Here is the call graph for this function:

◆ magnification_factor()

double kcenon::pacs::services::sop_classes::xa_calibration_data::magnification_factor ( ) const

nodiscardnoexcept

Calculate magnification factor.

Returns: SID/SOD ratio, or 0 if distances are invalid

Definition at line 187 of file xa_storage.cpp.

                                                                {
    if (distance_source_to_patient <= 0.0 ||
        distance_source_to_detector <= 0.0) {
        return 0.0;
    }
    return distance_source_to_detector / distance_source_to_patient;
}