RAHBAR
RAHBAR MBBSBasics of Radiology • Third Year Deep Learning Master
 ← Year 03 Subjects
YEAR 03 • BASICS OF RADIOLOGY • 20-MODULE • FULL CHAPTER MASTER

Basics of Radiology Learning Material

20 learning units covering imaging selection, modality fundamentals, patient safety and systematic interpretation across major body systems. Read the chapters, revise the key distinctions, then attempt 10 explained questions per unit in practice or assessment mode.

Academic scope: Original RAHBAR notes for the Year 3 clinical transition, covering foundational diagnostic imaging within the RAHBAR MBBS pathway. Institutional sequencing may differ. Examples are educational; clinical decisions and procedures require appropriate supervision and current local protocols. Sources & further reading ↓
RA
● MODULE 10 / 20

Cardiac & Vascular Imaging

Match structural, flow and perfusion questions to the appropriate cardiovascular examination.

Quick revision ↓ Medical Dictionary

FULL CHAPTER EXPLANATION

Deep Learning — Module 10

Connect the clinical question to modality choice, image appearances, limitations and the next decision.

01

Heart size is not function

A chest radiograph can show the cardiac silhouette and pulmonary vascular pattern, but it does not directly measure ventricular performance. Apparent enlargement depends on projection and inspiration. Echocardiography assesses chambers, valves and dynamic function using ultrasound, with its own windows and limitations. A normal silhouette cannot exclude important valve disease, ischemia or heart failure, so the chosen investigation must address the actual physiological question.

02

Pulmonary vascular disease

Suspected pulmonary embolism is evaluated through a clinical probability pathway, with laboratory testing or imaging as appropriate. CT pulmonary angiography requires suitable pulmonary arterial enhancement; ventilation-perfusion imaging is an alternative in selected circumstances. A normal chest radiograph does not settle the question. A technically limited angiogram should not be treated as a confidently negative examination, particularly when the clinical concern remains substantial.

03

Aorta and arterial anatomy

CT angiography can rapidly define vascular anatomy, while ultrasound and MR angiography have roles depending on the vessel and question. An aneurysm describes dilation; dissection involves separation within the arterial wall and is a different process. Sudden severe pain with suspected acute aortic disease needs urgent coordination. Protocol planning determines the imaged extent and enhancement, so a routine scan of a nearby organ may be inadequate.

04

Venous imaging

Compression ultrasound and Doppler are used in assessment of suspected deep venous thrombosis. Failure of a vein to compress can be important, but the examination has a defined anatomical scope and may be limited. Results are interpreted within the clinical pathway, which determines whether repeat or alternative testing is needed. A color image alone cannot substitute for a properly performed and interpreted venous study.

05

Choose structure or function

Coronary CT, cardiac MRI, echocardiography and nuclear perfusion studies answer overlapping but distinct questions about anatomy, function or perfusion. No single test replaces history, ECG and biomarkers in every acute presentation. Document urgency and relevant prior procedures or implants. Discuss the result with the responsible team, recognizing that a stenosis, perfusion defect or motion abnormality must be interpreted with clinical significance rather than as an isolated picture.

High-Yield Revision

  • Cardiac silhouette size is not ventricular function.
  • Angiographic protocols are vessel-specific.
  • Interpret venous studies within the clinical probability pathway.

Common Exam & Concept Pitfalls

  • A limited angiogram is not a reliable negative result.
  • Aneurysm and dissection are different vascular processes.

Sources & Further Reading

Curriculum and reference review: 25 September 2026. These original notes teach foundational imaging concepts and clinical reasoning. Interpretation of real studies and procedures requires supervised training. International guidance supports the principles below; local pathways, resources and authorized supervision govern patient care. Faculty review is pending.

RAHBAR study structure: clinical question → modality → technique → systematic findings → interpretation → communication. Use institutional curriculum and faculty guidance for supervised clinical skills and assessment requirements.